Friday, October 23, 2009

God or Gibbon?

So what worked and what didn't? What would I take again and what would I change.

Separating Gods from Gibbons:-

Gods.

The Bike

Lets start with the big things - the bike worked out just fine - many thanks to Aaron at Brookvale Bike Factory who recently rebuilt it. It's a 2008 Scott Genius with a carbon main triangle and an aluminium Horst link on the back. I got it as a 40th birthday present for myself to prove I was still young. I bought it on a Saturday then crashed it on Sunday, breaking my arm. Certainly, age has not made me smarter.

The great thing with this bike is the adjustable travel suspension. With a Fox Talas upfront and Scotts own rear shock you can set it up as a hardtail with 100mm at the front for going fast, or, as the wear and tear builds up on your rear loosen the back to 90mm, then 130mm of travel. In training I've run it hardnosed; locking the front and leaving the back @90mm. This means you can stand up and honk without having to touch the controls. There is no platform damping on the rear shock - I don't think it needs it with the Horst Link - it's such a good peddler.

The Wide Wheels

The Snowcat wheels I've already talked about at some length - I won't repeat it all here but I will just mention tyres. That Kenda Small Block 8 was a beast in 2.35 width. I was a bit worried about the very thin sidewalls bit it got through fine.

Puncture Sealant

Stan's No Tubes Sealant. The SDCC is probably the best advert for Stan's Sealant in the world. Leon got a monster thorn in his tyre. He pulled it out but the hole was too big for Stan's to seal, so he put the thorn back in the hole and kept cycling. By contrast, Aaron, rider 29 had 8 punctures. On one occasion he got 200 metres from the start before getting a flat. Freddy ran tubeless tyres but still got flat tyres until Richard sorted him out with some sealant.

The GPS

The GPS was great, both for overall speed and for the waypoints that help break a stage into managble chunks. On that hard second day I knew exactly how far I had to go before I'd turn out of the headwind. The screen can be a little hard to see on the Oregon and it's not really meant for cycling but it kept me company well enough.

Waxed Chains

Chains I've already spoken about. Not a problem with the sand.

The Bento Box

The bento box looks a bit odd on a mountain bike but did a good job of holding both my camera and my Uncle Tobies muesli bars.

My camera (a knackered Canon Ixus) was also a good thing to have along.

Finally, wearing 2 pairs of shorts was a great idea and something I should have done from day 1.

Gibbons

Cheap bar ends

Worst of the worst, the bar ends. Three weeks after the event and I still have no feeling in the smallest 2 fingers of each hand. Well, that's not quite true, and the difference shows what a curious creature the human is - I can feel the inside of my ring finger but not the outside - the feeling is split down the middle. The nerves for the little finger and half the ring finger must be routed in one direction and the nerves for the other half of the ring finger routed somewhere else. Interesting, but I'd rather have some feeling back.

I bought cheap barends in a panic after meeting up with the Sydney guys who were all using them. I only completed one circuit in the Blueys with them, had problems and bought some expensive track mitts to try and compensate. "never use anything in a race that you haven't used in training: - that's a good motto. The clamp has a bulge that bruised the ulna nerve in my palm.

Not everything about the bar ends was bad. I liked the wide grip with the extra leverage it gave for steering on sand.

My beloved saddle

The saddle - a Fizik Gobi. I've spent many a happy hour on this saddle. I’ve done 8 hour rides, 16 hour weekends. It’s amazing that one day in the desert and I'm in deep trouble. I think next year I'll get something big with springs.

Untested Cycle shorts

Nothing wrong with the shorts per say, they’re well made and I got a good deal. My idea here was to have a fresh pair on knicks for every stage – bibs in the morning and shorts in the afternoon. My mistake was not testing them out before I raced in them. I've been wearing bibs for a long time and think I get on better with something that has braces - it holds the chamois up and stops it moving around.

Thursday, October 22, 2009

Gumby's Race Report

Is on the Desert Challenge website here.

I complain about being a 95 kilo primate but Mike's a lot heavier than me. I think the small guys should be made to carry extra weight just like in horse racing. A minimum weight of say, 85 to 90 kilos sounds about right.

Back on two wheels

This week I've been wafting into work on my road bike - a $500 ebay special. It's great to be moving again and that tarmac - what a great idea! A smooth hard surface to roll along. Excellent.

I had a bit of trouble at the start of the week as I lacked strength in my hands. Even now I find it hard to change into and out of the big ring; my left had is a bit weak, but I can brake okay. (On the road I subscribe to Sheldon Brown's 'only ever use the front brake' idea. I'm not sure if it's any better or worse than using both brakes but its good fun. Certainly, it's easy on the back tyre - I've got a moth eaten Michelin Pro-race on the back. It's been on it's last legs for months - refuses to die)

The mountain bike is still in bits - the good guys at Brookvale Bike Factory are servicing the forks. I sent them directly to Brookvale to avoid the excess baggage charges! I'm in no hurry to get back off the road. I doubt I could hang on anyway.

Monday, October 19, 2009

Ken's Race Report (#28)

Reproduced with kind permission:-

Hello all!

Well I'm back from the Simpson Desert and you're probably all wondering how I fared. Firstly, my apologies that this email is a little overdue - I've been busy sorting out all the gear after my return, and getting pictures uploaded to a Picasa web album so people can view them etc.

The race was absolutely fantastic and an absolute credit to the organisers and volunteers who gave their time to make it happen.

As discussed in the last email, my group headed out from Coober Pedy to Purnie Bore (with a short stop at Dalhousie Springs for a relaxing swim) and arrived one day ahead of the race start. So we had a one day lay-over where we could relax, acclimatise and prepare our bikes. We even fitted in some sand dune practice and a game of cricket.

Final race registration and briefings occurred between 3 and 6pm on race-eve. It sounded like it was going to be extremely arduous. What's more, due to worse than ever track conditions, and flooding at the Warburton Crossing on the Birdsville Track, it was unclear just what route we would take across the desert - or indeed, how long it would take!

With this in mind we all returned to our campsites and completed the final prep for the morning - we would be up at 4.30am. The lead convoy would leave at 5.30am while the riders weighed-in, and the riders would leave at 6.30am. This would be the pattern for the next five days. It was hectic, and would catch our team of riders and support crews with their pants down (quite literally for me at one stage!) a few times. We had six riders in our Dirtworks 'crew', and each of us had different dietary, supplement and water requirements... even stuff like what side a Camelbak tube should be strapped on becomes important!

Day 1:

Well as was promised, race director Mark Polley sounded the horn in his 4WD at 4.30am and the mad scramble began. The six support crew in our team fussed over the six riders. Lissanthea hastily prepared and dished out the breakfasts. Camp was packed up and Lissanthea lined up in the lead convoy in the Troopy. As a team our strategy was to send Lissanthea out in the lead convoy on each stage so she could drop off water and food supplies at each of the water stops along the stage, and then get to the other end and prepare the next lot of meals. This put her and the rest of the support crew under a lot of pressure to get the riders fed and the Troopy packed and ready to go on each stage. If she missed the start, she had to wait for the sweep convoy and this would prove disastrous for the riders.

We all weighed in at 5.30am and Lissanthea left in the forward convoy. We now had another 60 minutes of waiting around nervously for the start. Bikes and tyre pressures were checked, and probably checked again and again during that time. At 6.25am we all lined up – itching to go.

Stage 1:

“5, 4, 3, 2, 1, Go!” We were underway! And then within 100 metres, half the field was walking! We were climbing our first sand dune, and riders were stepping off everywhere to walk. The sand here was soft but mostly rideable. The problem came when you lost momentum for any reason – as soon as that happened, you had to get
off and lug your bike through the sand until you could find a firmer point to get going again.

The going was like this for about the next 29km, with the sand dunes getting progressively softer and higher. Then, the track turned somewhat south and stayed in the valley between two sand dunes – the respite from the constant lugging of the bike over the dunes was fantastic. For the next 14km or so, I was able to maintain a comfortable 20-22kph…. Then it turned east again.

I guess if I want to get to Birdsville, then at some point I’ve got to travel east… but this was just awful! The dunes were relentless. A quick look at the satellite image of my route will show the intensity of the sand dunes, and the activity
data shows just how “stop-start” the going was. As the temperature climbed, the sand became softer and softer. I found very quickly that it would get into my shoes and begin to crowd my feet, causing hotspots around the balls of the feet and the big toes. By the time I finished (some 5 hours 32 minutes after I started) the bottoms of my feet were on fire – I’d have to find a solution for this.

I finished the stage in about 5th or 6th place, and was pretty happy with this.

Stage 2:
The afternoon stage commenced at 2.30pm sharp. Lissanthea had left at 2pm after feeding us and collecting our water bottles and what-nots for the next stage.

As if to lull all the riders into a false sense of security the track headed south for the first 15km, again between the dunes. At that point, just to bring us all back to earth, it turned east into the sand dunes – but only for about 3km. It was enough to slow us all down – like a short, sharp slap in the face. Then it was back to heading south for another 15km. In spite of the heat, this was bliss – I could do this all day! I even stopped to take a photo, but just then a medic came past to check how I was, so I got them to take one of me instead.

At about the 34km mark the track turned east again. To this point I had maintained an average speed of 22kph, but the sand dunes I was about to encounter would soon eat into that. Again, a look at the activity data shows that I was off the bike probably more than I was on it. By the time I finished the stage my overall average had dropped down to 13.7kph. I was totally stuffed and remarked to someone that that had been the hardest thing I had ever done on a mountain bike.

Still, I finished the day in 6th place and felt well pleased.

Day 2:
The first stage on Day 2 has traditionally been the hardest – last year all but four riders were swept on this stage. The sand dunes are high, soft and plentiful. For this reason we were advised at the rider briefing on the previous evening
that only the lead five riders’ support vehicles would be allowed to commence in the forward convoy in the morning. The rest of the vehicles had to go in the sweep convoy to be able to carry ‘all of the swept riders’. I had finished the previous day in 6th place, but my team mate Jeff Rooney had come home in 5th place, so we still had Lissanthea in the lead convoy – phew! Between me, Jeff and Jason Dreggs, we would each maintain a position high enough in the rankings to keep Lissanthea in the forward convoy for the rest of the race.

Stage 3:
Well the officials weren’t wrong when they warned us about this stage at last night’s rider briefing!
The going was so slow and physically exhausting. Not only were there huge dunes to get over, but the sand between the dunes was also energy sapping – it was about 5-6 inches deep and just so soft. Riding in it was almost impossible, and riders were riding all over the place except on the track, just trying to find some firm ground.

The temp rose quickly and hit about 41 degrees by mid morning. I was struggling physically to maintain momentum, and mentally to keep trying. A hot, dry wind was blowing in from the north and whipping sand up into our faces. Having to ride with your face head cocked to the right just to avoid getting sand in your eyes was
painful. The water in my bottle had also heated up and because it contained a sugary energy supplement, it tasted like it was beginning to ferment. It was a struggle to keep it down and in the end I gave up and relied solely on the water in my Camelbak.

At about the 32km mark we turned north and travelled between the dunes. You’d think I’d be happy about this after yesterday’s blissful run between the dunes… but this was hell. Now we were travelling directly into the hot head-wind, which by now was whipping up one of those famous Simpson Desert sandstorms. I could hardly see, and the track was almost indiscernible with fresh sand-drifts all over it.

At about 37km I was swept. It was a kind of mixed emotion moment. I was glad the pain was over, but tormented by the fact I hadn’t been able to go on and complete the stage. But I wasn’t alone. The convoy was constantly stopping to pick up more dejected riders. By the 40km mark, only 7 out of 30 were left, and by the end of the stage, only one – Alan Keenleside. I felt somewhat vindicated, but the torment of not finishing still won’t go away.

Stage 4:
The wind had died down for the commencement of the afternoon stage, but the temp was still around 41 degrees. It started with a short run north before turning 180 degrees and heading south across a clay pan. You could feel the heat bouncing straight back up into your face. Before we’d even hit the 5km mark I was stationary and just hunched over the handlebars wondering what the heck I was doing here. I wondered if my afternoon was already over. I’d made the mistake of leaving my bottle and Camelbak in the sun during lunch – I’ll never do that again. When you look down at your drink bottle and notice that it’s swollen and looks somewhat like a football – you kinda get a hunch that it’s not drinkable!

Alisha Houghton came past me and suggested I try a ‘doubleshot’ of Endura (my energy gel of choice), and I decided I had nothing to lose so I did. This helped me to ‘come good’, and got me to the first water stop at 15km, where I was able to replace my gammy drink bottle and Camelbak. Now I felt heaps better and was able to crack-on with it. We were heading south between the dunes and I was making up some serious time and picking off other riders as I went.

At about the 27km mark we turned east into the sand dunes again, but I felt good. The heat and deep sand was beginning to crack a lot of the riders and before long I realised I was in the top three. With about 5km to go the track turned south again and offered up a little bit of respite. I was able to lift my speed and could now see the two lead riders. With about 2km to go I picked off third place and had Lynton Stretton (last year’s overall winner) in my sites. I was closing pretty quickly, but he still got me by about 300 metres. It had been a savage afternoon, with high temps and deep sand allowing only seven of the riders to complete the stage, but I’d just managed a second place in a stage of the Simpson Desert Challenge and I felt fantastic.

Day 3:
Today would be ‘crunch-time’ for the race officials – would the Warburton Crossing on the Birdsville track be open, and if not, what would the plan of attack be? Do they send the riders north on the K1 Line? Or do they send the riders as far as they can toward the Warburton and then do a short transit-stage to get around it? They wouldn’t find out until the forward convoy reached the intersection between the Rig Rd and the K1 Line, where Mark Polley would contact the Birdsville Hotel by sat-phone to confirm the track conditions at the Warburton. At that time he would make the decision as to whether the riders turn left and head north, or turn right and head south. With the pattern of northerly winds we’d had for the last couple of days, it was no secret that all of the riders were praying for a right turn!

Stage 5
This one turned out to be a real ‘mixed-bag’ of riding conditions. We started out heading south, but only for a couple of km before we turned east and tackled more sand-dunes. They were tall and soft and made for a lot of ‘stop-start’ riding. At 7km we turned north. In spite of running between the dunes, the strong northerly winds over the last couple of days had deposited large amounts of soft sand on the track. I had to go ‘off-road’ in an attempt to find some firm crusty sand. The risk of course is that I would run over some thorns and blow the tyres, but I was running with Stan’s tubeless tyre sealant so I was confident that all but the worst of punctures would be sealed immediately.

At 20km I reached the water stop – a quick change of bottle and Camelbak and some encouraging banter with the medics and I was underway again – this time back east into the sand dunes… but they had assured me that after 10km it would turn south-east and track along a salt-lake. The temp was climbing steadily and settled just over 40 degrees. I was hoping this promised salt-lake would provide some respite.

And it did! I was able to really build some decent speed. I turned the ipod on and cruised along to an Eagles album. The northerly wind had picked up, but while ever it was behind me like this, I wasn’t complaining.

At 51km the track turned east and left the flat hard surface of the salt-lake for some more sand dunes. These were the biggest and softest I had encountered. There was a lot of carrying going on now, and then big speeds down the back of the dunes. A couple of times while coasting down the back of the bigger dunes my front wheel sank into the sand, all but disappearing, and sending me cart-wheeling over the handlebars. At least the landings were soft. It was quite like skiing on fresh powder snow – except that it was about 40 degrees warmer and that stuff blowing into my face in the now increasing northerly wind wasn’t snow, it was sand.

At 60km I came down the back of the last of the big dunes before the intersection with the K1 Line. I could see the intersection a few hundred metres ahead, and I could just see the blue direction marker sign that had been put out for us, but I couldn’t quite make out which way it was pointing. I was able to see a fair distance north and south on the K1 Line and couldn’t make out any other riders either… I simply had to get closer to the sign and find out my fate.

North. Nooooooooo! I was really looking forward to seeing the Warburton Crossing too – guess I’ll have to come back for another crack. So I turned north into the now howling wind. The track was soft and ill-defined at first, but after a few km it came onto a salt-lake and skirted along the edge. The salt-lake was about 30km long, and the wind had now dished up another Simpson Desert sandstorm, only this time it was whipping up some salt just for added spice. The hardpacked surface was slowly getting a two-inch coating of soft sand on it, which really made the going tough.

My average speed plummeted dangerously. It was all I could do to just keep my head down, looking at my front wheel through squinted eyes and just keep the pedals turning over. My feet were burning with cramp because my shoes had filled with sand. Eventually I had to force myself to stop and remove the shoes and then the socks to pour out the sand – I’d estimate I got half a cup out of each. I say I had to force myself because I found myself agonizing over putting up with the pain in my feet versus stopping to relieve it – only to not be able to get going again. What if? How far back is the sweep? I can’t stop. What if I get caught? What if I cramp up and can’t get going again?

Emptying the shoes relieved the pressure, but it started me on a path of destruction that I only just overcame. Having stopped, it was as if my body had decided that it was okay to begin the ‘shutdown’ process – as if my body (or perhaps my mind) had decided the stage was over. I stopped along that salt-lake maybe another four times. Literally just stopped. I couldn’t get off the bike, and would just hunch over the bars, trying to breathe some ‘clean’ air. I traded places with Katerina the Slovakian rider four or five times along that salt-lake. I think she was going through the same torment as me. But eventually I managed to keep it together to roll into the finish line in about 4th place amid the cheers of all the support crews and medics. I couldn’t get off the bike, and took quite some time to re-gather my composure. That stage had just become the hardest thing I had ever done on a mountain bike.

Stage 6:
Fancy some sand with your sandwich? The sandstorm continued through lunch and made for quite an unpleasant stop. Hardly anyone talked – I think we all just wanted this day over and done with. We were so busy licking our wounds that Lissanthea nearly missed the lead convoy and had to leave without the tables and chairs.

At 2.30pm we cracked on with the afternoon stage. For the first 10km I felt okay, and was probably averaging 15kph along the edge of the salt-lake. The wind had died off a bit, so it was just the temperature that I had to contend with. But then the salt-lake ended, and we were back to riding north between the dunes, which would have been okay, but the morning winds hand deposited so much sand on the track it was up to a metre deep in places. There was no choice but to ride off to the sides of the track in search of firmer ground – which was rare.

My average speed quickly dropped to about 7-8kph in this soft stuff – way below sweep pace. I was bound to be caught soon. A hawk of some kind came and joined me for a while. Each time I got ahead of him he’d fly past me to the next tree and wait for me to come past again. He did this about four times and I began to wonder if he sensed my weakness and was just waiting for me to drop!

It became my goal just to make it to the first water stop at the 15km mark. Even that proved difficult, with my mind and body playing the same ‘stop and rest’ games as it had been in the morning stage. At one point I found myself stopped on the bike – literally 100 metres from the water stop, and not able to go any further. When I finally dragged myself in to the stop the medics sprayed me down with some cool water and had me sit down so they could monitor me.

After about three or four minutes something in me made me get back up. I just couldn’t bear the thought of sitting there, waiting to be swept – I had to go down fighting. I donned a fresh Camelbak and grabbed a new water bottle and went to set out. I asked the medics how far back the sweep was and they replied that that was him we could hear coming now… Damn it! If I could just put another km into him I’d feel okay… So off I set.

I managed to lift my speed up to about 13kph, and then eventually I started seeing some nice healthy “22”s and “23”s pop up on my GPS screen – but it was too little too late. The sweep caught me at the 25km mark. At least I’d been able to put another 10km into him – and I was only hoping for one!

Day 4:
Because the race had been diverted to the north, it also had to be shortened by about 100km. This meant that Day 4 would only consist of a relatively short stage of 41km, followed by a 4WD transit along the track known as the QAA Line to somewhere near the Eyre Creek. The 4WD transit was because the sand dunes on that section of the QAA Line had anecdotally been deemed simply too large, too soft and totally unrideable. In hindsight I think all of the riders would have welcomed the challenge as nothing we transited across seemed in anyway more daunting than what we had already covered. Ah well, them’s the breaks – it made for a nice afternoon off.

Stage 7:
At 6.30am we all lined up again ready to go. It was nice and cool and a slight wind was coming in from the west. We took off and found ourselves heading north between the dunes, contending with the usual sand drifts on the track. I found I was best able to maintain momentum by riding anywhere between ten and twenty metres off the track. Here I could still make out what direction the track was heading in, and the surface was somewhat crusty. Some riders who ventured further away from the track found that it backfired on them when the track diverged away from them and they had to make up ground. Others found that riding off the track led to countless punctures, and so they dared no risk it.

At about the 20km mark we hit a salt lake and I was feeling strong, so I jumped into the top gear and began grinding away. I was already up with the top bunch of riders, including Jason Dreggs, Jeff Rooney and Andrew Jameson (the New Zealander). I stayed with them for a while, on about 23kph, but my legs just wanted to take advantage of this hard-packed run while it lasted, so eventually I bid them farewell.

At the 30km water stop I asked the medics who was out front, and they replied that I was ‘it’. Crap! I looked back to the south and couldn’t see a rider in sight. It dawned on me that I could possibly win a stage of the Simpson Desert Challenge! So off I went. I was already in top gear, so I just worked on building a strong and steady cadence, pulling up on the pedals as much as I was pushing down. At about the 37km mark the track turned hard-east – straight across the salt lake. The wind was in my back, and I was able to push my speed up to about 35kph! Up ahead I could see that I was about to hit the sand dunes again, but I also knew that when I did, there was only a couple of km to go.

I hit the sand dunes running – and I mean literally running! I could taste this stage win now, and I wanted it more than ever. A quick look at the activity data sheet shows that my speed dropped dramatically in the dunes, I was off the bike
more than I was on it, but eventually the boxing kangaroo flag appeared on the horizon and I was coasting down the last of the dunes for the run into the finish line. I had done it! I had just won a stage of the Simpson Desert Challenge.
The next rider to come in was Jeff Rooney – only about 7 minutes behind me.

Day 5:
The last day. Everywhere across the camp spirits were high. By lunchtime it would all be over. We could enjoy a cold drink at the Birdsville Hotel, and marvel at what we had just achieved.

On this day my dad came to me in the morning at said that he planned on going in the early convoy to Birdsville. He hadn’t been in the early convoy at all during the race, having always stayed back with the sweep crew. He said he hadn’t seen the finish of a single stage, and he wanted to see the finish of this one. I think he might have been disappointed to find out that I’d won yesterday’s stage, and he wasn’t there to see it. That was fair enough and so I bid him farewell at 5.30am. I’d be lying if I didn’t say that I felt a little bit of pressure now to finish the stage without being swept – the only stage that Dad would get to actually see me finish.

Stage 8:
For some reason I wasn’t feeling too well on the last morning…maybe 5 days of eating countless energy bars? I’d already been to the toilet once since 5.30am, but now with the race start imminent, I had to go again. I heard the sweep call out across the camp “10 minutes riders”… so I decided I had time to go again. So armed with a shovel, off I trotted. The next thing I heard was “5, 4, 3, 2, 1, Go!” What the!!!!! As it turned out, the sweep had called “2 minutes”, not “10”. So I took care of business, and went back to the 4WD, dumped the shovel, cleaned my hands and got on the bike. The bewildered looks from the sweep crew as I rode through camp were priceless. When I explained where I’d been they simply pointed in the direction of the rising sun and said “they went that way – you best try and catch them”.

And so I did. I would later learn that I had lost nine minutes, but right now all I could think about was catching up to the bunch. Within about 20 minutes I caught and passed the first (or last) rider, then I started picking them off slowly but steadily. I was making great progress sticking just to the side of the track. Soon I had passed 11 riders, and then I lost count. I came onto a bunch of riders (about 10) who had stopped to assist Freddy Moojen who had crashed. He was just getting back on his feet and was about to get going again. So I joined the rest of the riders who had done what they could to assist, and continued heading east.

At the first water stop (20km) I was just pulling in as the lead rider Alan Descantes was pulling out. A quick change of water and I was underway again. Al had about 300 metres on me and it took about 2km to catch him. We spent a bit of time together, but then I began to creep ahead. From the tracks in the sand I could tell I was alone – there was no-one in front of me.

At ‘Big Red’ the track turned south and travelled along the based of the monster sand dune before turning east and going over it. From the top I dared to look back, and I couldn’t see any riders in sight. I coasted down the other side and
continued the extra couple of km to the second water stop. The medic crew here assured me it was a gravel road the rest of the way to Birdsville to I attempted to pump up the tyres. But disaster struck! I couldn’t get any air into the rear tyre, and only succeeded in letting more air out. They were already low at 18psi! I didn’t dare try the front wheel as well. There was nothing to do except crack on and hope I didn’t roll the tyre off the rim. The corrugations were dreadful, and the gravel included stones as big as fists. If I made it into town on these tyres it would be a miracle. I just kept my head down and kept pedalling, and trying to find the smoothest line on the track. My average speed felt slow. It felt like I was driving a plough.

Surely the rest of the field would catch me. But slowly and surely I came to water stop three (50km). The medics here dared taunt me with the idea that this stage could be mine too. Line honours into Birdsville – how cool would that be?

I got going again. The corrugations settled down a bit and so did the size of the gravel. In a couple of places I was actually able to find a smooth line, but still I was slow, and the tyres kept squirming around dangerously underneath the bike. I was nursing the tyres to the end the race. I came across a stock grid across the road. I wasn’t game to ride across it lest I blow the tyres, so I was off the bike and carrying it gingerly across. I kept going, and only looked back a couple of times to see if I was being caught – but still no-one was there. It couldn’t be long now though. But what if I could get line honours? What if? Dad would be there too – how great would it be to give him line honours on the only stage that he saw the end of? Then another cattle grid – same drill… and another. Was this a sign of civilisation? Then I saw an antenna mast on a building in the distance – Birdsville?

Then the buildings started to pop up out of the horizon. Now it was a town – this was Birdsville! Then I hit bitumen. I kept slogging away for a few hundred metres, then I dared to look back again. No-one was there – now I could afford to sit up and cruise into town. As I entered the main street I could see the crowds outside the pub. They were waving flags and hats and cheering and clapping – and there was the finish line – strung out across the roadway, and it was mine to break. Awesome.

I’d just completed the Simpson Desert Challenge with line honours at Birdsville. The next rider came in 20 minutes later – not bad considering I’d missed the start by nine minutes.

I have a lot of people to thank; not least of all is my dad Svend. From the outset I thought this would be something great to share with my dad, and it turned out to be just that in so many ways. He put me to bed and got me up each day. He mixed my drinks, got my race nutrition prepped and provided all the encouragement I needed.

Shane and Sharon Dowling carted me and dad out there and back in their 4WD. I’d never met them before this, but they catered to my every whim. Sharon looked out for my needs constantly. She massaged my numb hands, and my aching quads each night. These guys will be friends for life.

Lissanthea prepared food for the whole tribe day in and day out. She was constantly ‘under the pump’ to deliver, and she did so everytime with a smile. Another friend for life.

The whole ‘Dirtworks’ crew consisting of us six riders: Jason, Mike, Wayne. Jeff and Alisha, and our
supports; Lissanthea, Dad, Kyria, Dave and Shane and Sharon – a fantastic mix of people all motivated by a common cause. All friends for life.

Wayne Polley and the rest of the officials, including the water stop crews and medics – all volunteered their own time and were dead-set ‘Angels in the desert’.

My friends at Bikeminded, Wentworth Falls – for getting my bike to a standard where it could take on the challenges of the Simpson Desert.

My friends at Dirtworks Australia – providers of some excellent mountain bike products, including my Ellsworth bike, Stans ZTR Olympic wheels, and Crank Brothers pedals.

Richard Grant from Brunswick Street Cycles in Melbourne – for being a great wrench on the trip and a good all round sport.

My wife Lisa for having the patience to let me go and train for this, and letting me spend the money to actually go and do it.

And finally –

To everyone who sponsored me! I raised $2745 for the Royal Flying Doctor Service, but there’s no way I could have done it without your generosity.

Cheers all,

Ken Schack-Evans
President
Western Sydney Mountain Bike Club

Wednesday, October 14, 2009

Bike oil on the carpet

Nothing causes more arguments, divides more families and starts more flame wars than the subject of chain lubrication. (at least in cycling circles)

Back home in old Blighty, cycling in constant rain through liquid mud it was usual to burn out your drive train every year. We used to buy the cheaper LX versions because you knew that you’d be throwing it in the bin in 12 months time. When I started mountain biking in the desiccated continent of Australia I expected far greater longevity from my chain and cassette so I was somewhat annoyed, 12 months later, to be throwing my highly expensive XT kit in the bin. It’s not even that I’m careless with my equipment; as a compulsive bike fondler and tinkerer I’d lubricated that chain every trip. Wearing itself out seemed a poor reward for my careful attentions.


From serial retrogrouch and uber-curmudgeon Jobst Brandt we learn that; the principle factors in chain wear are load, lubrication and contamination, that you should never oil your chain on the bike (expect in extremis), and that wax is not a lubricant. Jobst Brandt has probably started more flame wars than the subject of chain lubrication, but he does have the annoying habit of being right.

What to do then?

I bought a new cassette and 3 chains. A new chain won’t run on an old cassette, but you can still get plenty of life from an old cassette. My plan here was to keep 3 chains equally worn and ride the whole lot into the grave.

In order to swap the chains over I needed to do away with the ‘Shimano single use joining pin insanity’. I’m a fan of Shimano but this one little device has put more on their bottom line than the Tour de France ever will. If you can’t take the chain off you’re not going to clean it, if you don’t clean it the chain will eat itself and your gears, once destroyed you’ll have to buy a whole new drive train. When you do, in the packet, free of charge, there’s another single use joining pin. Repeat.

Thankfully, it’s an easy fix. I’ve been using the KMC Missing Link or you can get 3 SRAM ones for ten bucks from the same supplier. Never had a problem, not one.

So, I’m set up with my three chains – what to use for lubricant? Well, that’s interesting. Back in the UK I used to use plenty of car engine oil – cheap, sticky and the only thing that would stay on through a river. In the dry and dusty conditions of Sydney oil had already shown itself to be a really bad idea. I’d been using ‘White Lightning’, a wax based lube on the recommendation of a friend. I quite liked it, but the proof of the pudding hadn’t been all that good. Also, it seemed a little out of wack spending $25 on a bottle of lube when I could get a whole new chain for $30.

Years and years ago, before mountain bikes were invented (or at least before they hit the UK) the guys in the cycle club would go for ‘Mad Hacks’. The original Shakespeare reads:

‘Shall I compare thee to a summers day? Wet and miserable?’

On a cold wet day we could still have a fun day out riding our road bikes cross country. Dave Johnson seemed to get the idea first. Anyway, the mad hack gave birth to the ‘hack bike’ that you didn’t mind getting trashed and you wanted to keep the hack bike running through liquid mud for the minimum of cost.

I’d experimented on my hack bike with dipping the chain in hot paraffin wax. I expected great things but it was crap – it hardly lasted 5 minutes. But today a lot of the new lubricants were waxed based so maybe it was worth another look.


This time around I thought I might dope the wax with a dry lubricant. I discounted graphite as being too messy. I thought about molybdenum disulfide or better yet titanium disulfide but it proved hard to get hold of. In the UK you can get miracle (snake oil) gearbox treatments with molybdenum disulfide but I couldn’t find them in Australia. In the end I settled for Nuflon, a miracle gearbox treatment using Teflon. From what I read, Dupont once made a statement that Teflon offered no benefit in metal to metal lubrication but today all cycle lubes are loaded with it so I don’t know if that still stands. Well, it doesn't stand in the way of making a dollar.

Regardless, 18 bucks later, 6 candles and ta-da - a wax bath with gearbox oil and Teflon.


Basically, I degrease the chain by shaking it in a plastic bottle with some kerosene, wash it in hot soapy water in the sink, dry it in the oven, cool it, then lay it on top of the hard wax in the oven at 90 degrees. This works fine apart from the oven stinks of gearbox oil which is a problem if you make scones.

Once everything is melted, I give it a bit of a wiggle in the hot wax, dig out the chain with a pair of pliers and clean it off with paper towels. Those pies at McDonald’s have a warning label saying they may be hot. I too have the IQ of a rabbit – I should really fix a warning label to the wax tray saying ‘This wax may be chuffing hot if it’s been in the oven’ or ‘Oi! Dumbnut! Where did you just put this chuffing tray of wax? In the oven or in the freezer? Is it going to be hot or cold?’. (Speaking of funny signs, I hear that in the US wing mirrors bear the label ‘Things in this mirror may actually be behind you’. I don’t know if that’s true but it’s the sort of story you could believe)


Once the chain is cool I stick it in a glad bag ready to go on the bike. I have a chain on the bike and 1 or 2 lubed up ready to go on. The only other thing I do is grease the pins of the missing link when I install the chain.

So, that seems like a mighty lot of effort. Is it worth it?

No, it’s crap. I wouldn’t bother.

Only joking.

It actually works pretty well. The Simpson Desert is the ideal environment for this kind of lube. While wax may be a poor lubricant it does fill in all the gaps; it’s very difficult for contamination to find its way into the chain. The gearbox oil softens the wax and the Teflon does Teflony things as only Teflon can. The chain is completely dry to the touch – it doesn’t pick up dust or sand.

I ran one chain for the first 4 days of the race– over 400km. I changed to a freshly lubed chain on the last day only because I’m a pathological bike fondler. It would have made a lot more sense to stick with the one that already worked.

How is it in the wet? Well, nowhere near as good, but then, what is? It’ll do about 100km. There was plenty of wet weather during my training for the Simpson. On the Double Double in the rain one lube would just about last the day. The problem here really comes back to contamination. As you fly down Andersons in the rain it’s like running down a sandy river. The chain gets covered in that lovely coarse Blue Mountains sand. It grates and grinds when you pedal. On the plus side you can wash the drive train in Bedford Creek (or give it a squirt of energy drink from your Camelbak) and you’re back in business. The chain is still wet so will pick up fresh sand but for a while the crunching stops.

I get a lot of emails nowadays from very kind people that I don’t even know. They worry that I don’t last long enough in bed, that I’m too small to please a woman or that I suffer from erectile dysfunction. But in my experience nothing drives a woman wild like bike oil on the carpet.

Saturday, October 10, 2009

Al's Race Report

You can read the real race report online here

After a long taper and a 3 day drive it was great to assemble the bike at Punie Bore and go for a spin. In the lead up to this event I’d been reading everything I could find about the race but the words ‘soft sand’ don’t explain what it’s really going to feel like when you press a tyre into the dirt. I know from my own testing that, for example, the sand at Shelly beach is very different to ride over than the sand at Clontarf.

I cycled down the track along the bore (plenty of spiky bits for punctures) then back up the dune that led to the campsite. There was soft sand in the track but it became a lot firmer as I broke left and cycled along the crest. This would have been a useful lesson if I’d been paying attention. Dropping off the crest back down to the camp site revealed another theme for the week; soft sand on the lee side of the dune with wheel eating tendencies. Freddy would get caught by this on day 5.

I was being supported by David from the Summittrax 4WD club and we’d teamed up with Trevor, who was supporting Alex, rider 10. David and I were both light campers, just using swags, so the plan was that David would join the lead convoy @ 5:30 leaving Trevor some time to drop the camp. Trevor would join the sweep convoy @ 7:00am, drive though the lunch stop, leapfrogging David’s Landcruiser, to arrive first at the evening camp. We stuck to this routine all the way through. It’s worth taking a moment just to thank these guys and the other members of the 4wd club. These guys are up at 4:30 in the morning working for their riders and don’t finish up until 9:30pm or later. On day 3, Raymond, Trevor and David were out in the dust-storm from hell cooking for their riders. I just cowered in the front seat with the windows firmly shut.

You can see the pre-race briefing and medical briefing on the video at Picassa.

Alex was keen to form a team from the start but I was very keen not to. The major problem was we’d never ridden together. Alex looked pretty fast and that was contrary to my race strategy. I’d given it a lot of thought over the preceding months and my plan was simply to hang on for grim death, I wanted to just sneak through before the sweep. Any significant lead on the sweep would be a waste of effort, a good time would be a disaster; it would be energy I could have saved for the next day.

I slept in front of the Landcruiser that night in my bivvy bag. It was good to be outside and see the stars. There are between 200 and 400 billion stars in our galaxy alone. Some folks reckon that a bloke with a beard made them all for us – I don’t think that’s very likely.

Day 1

An early, nervous start and we were off. Alex and I both started way too fast. It’s always hard holding yourself back at the start of a race, especially when you don’t know what’s up ahead. We got separated early but re-grouped after the 20K mark. The course headed south for a while and we span along quite nicely. Heading east, after the 60K water stop we throttled right back. We had plenty of time on the sweep.

One thing this stage showed was that both Alex and I rode well in the sand. I had my Whicked Wheels and Alex had Continental Rubber Queens (2.4) set up tubeless and soft enough to bottom out on the rims. I was running 15 and 12 psi. Alex also had the advantage of weighing 65 kg to my 95 – I’d put more weight through my back wheel than he’d put through his entire bike.

Alex and I also shared good balance and the ability to ride is a straight line. It sounds daft, but you can see from the tracks that a lot of riders actually weave left and right as they ride. If you can ride in a straight line the rear wheel follows the trough compacted by the front. It’s easier. I learnt to ride in a straight line years ago using rollers.

Stage 2, day 2 started with a lovely swoop south. I’d changed to a new pair of shorts that I’d not tested in training. My fault, but in the heat they cut me up quite badly, both on the arse and across my inner thigh. 130k and already my arse was in trouble. Alex and I were careful to keep off the gas. I was trickling along @ about 130 beats per minute – nice and easy, even below training pace. Even so we came in joint 3rd. We’d formally teamed up at this point, but that wasn’t to last.

Day 2

Stage 3 was always down as the make or break section, with 75 big dunes in the first 32K east, then a swing north for 20k, then 70 more dunes to finish.

If anything, this stage opened my eyes to how changeable the desert can be. It can go from ‘all very funny’ to a survival situation in the blink of a gritty eye.

Alex and I set out at an easy pace and cruised the first section of dunes. As we came to the junction for the turn north we even had time to stop for a photograph. Lynton cruised past (You can tell Lynton has done this before; he’s tidy. We saw him at a water stop. As Alex commented “that’s the way to do it. Two bidons out, two bidons in, see you later”. By contrast we fumbled around with changing camel baks, going for a pee, poking the bikes etc).

Lyntons passing put Alex and I @ joint 4th, if either of us had bothered to count. Finishing was the name of the game so we wobbled off up north.

One thing that did work out well was my GPS. I’d set all the waypoints for the major turns which helped to break up the longer legs of the stage. I knew how far we were from the Lone Gum and from the turn east. I also had the average speed as well – I knew if that dropped below 12km/hr I’d get swept.

There was some soft sand in the track but it was all very funny until the dust storm started. Suddenly, out of nowhere we hit this strong headwind. Our average speed dropped. After messing around taking pictures we were now in trouble. 12.3, 12.2, 12.1.

I still felt strong in my legs but Alex was dropping back. On these tracks you only get a very narrow band to cycle in. He couldn’t get out of the wind behind me without running on soft sand or corrugations. I went back a couple of times. 12.0, 11.9. I couldn’t help him and he said go.

So, I was off on my own, trying to keep the average speed above 12.0. Later I caught Lynton. I was keen to work together but he couldn’t find any shelter behind me. After a couple of tries I left him as well.

At least from my GPS I knew how far it was to the turn. I reasoned soft sand dunes in a cross wind would be better than a soft track in a head wind. I fought my average speed to the turn.

First I caught Jeff (26), who I found out later was having trouble getting the hot fluid down. It was like drinking bath water. A tea bag wouldn’t have gone amiss. Later I caught Kiwi Andrew (21) standing on a dune. I didn’t have time to stop.

Even then, I was right on the limit of being swept. Near the end I had to swear quite viciously at a couple of sand dunes to get over them without walking.

Cara of the socks came alongside, driven by Mel. “Keep going” she shouted. “Everyone’s on the radio cheering for you”.

If there are some little words that drive my wife wild it’s ‘As the crow flies’. When we go camping Rachel asks “How far is the camp?”

“3k” I reply but I’m duty bound to add “As the crow flies”.

“But how far is it really?”

“I’ve no idea. It’s 3 k as the crow flies”

“If you say that one more time…”

After launching some particularly gratuitous expletives at the last sand dune I popped out next to the salt lake only to find the finish 1.8km away AS THE CROW FLIES.

Not being a crow I had to pedal for another 5 km around the salt lake to the finish.

I was the first rider home but also the last.

Stage 4 took us north for a bit then we had a long sweep south.
We had to cycle beside the track to find firm sand. You should have seen some of the stuff we were hitting – again it’s a great advert for Stan’s sealant.

I had no real issues apart from my arse. Despite having 130mm of rear suspension I was in real pain bouncing over rocks and scalloped sand off the main track. I’d lost skin from one cheek and badly blistered the other. Dr Mal gave me some dressings.

The point I’d make here is that I’ve never had this problem before. In training I’d cycled 200km off road over a weekend on my beloved Fizik Gobi saddle. Sure, I knew I’d been cycling but no-where near drawing blood. This Simpson thing is harder on the arse by an order of magnitude than anything else you might have done.

As a precaution I’d brought along the nice foamy seat from my road bike. I changed over on the evening of day 2. It was a lot better, but the damage had already been done.

Day 3

Day 3 should have been easy but it wasn’t. Another of those switches flicked and fun turned to serious sh1t before the day was out.

Stage 5 started easily enough. We caught Katarina on the last sand dunes before the salt lake. She rode a tricked out Cannondale Rush with Tufo tubeless tubular tyres. All very light but no sealant! Katarina had a flat in the front so I stopped to give her a blast of CO2.

Note to self – give her the slow CO2 next time – on the salt lake she blasted past us and left us for dead.

Cycling by the salt lake was a real privilege. It’s hard enough to get out to an area like this to see it with your own eyes. To see it from the saddle of a bicycle was an amazing experience.

My amazing wheels, now at 12 and 10psi zinged along the hardpack beside the salt lake. I could have stopped to add some air but I was having too much fun.

After the salt lake we turned east for some more dunes. Alex and I cleared the last 3 before Warburton Line with a whoop. It was like skiing in powder snow.

Unfortunately, it was then that the desert pressed the button and the dust started to blow. This was really unfair; on a normal year we’d be heading south with a tail wind towards Warburton crossing. This year, with the crossing closed by floods we were forced to head into the teeth of the gale.

Sand and gales up the side of the salt lake. Alex wanted to walk for 5 minutes to ease his arse. We walked then cycled. We walked again. When walking the scabs on my arse would dry closed – when I got back on they would rip open. Next time I left Alex to walk and carried on pedalling.

It was a pretty desperate time, peddling with a mouth full of sand, not being able to stop. There is a picture of me @ 75 km. I was very happy to see that. In the end I squeaked in with Mike (14). I lowered my arse cautiously into a folding chair. David pushed a can of solo and a tube of Pringles into my hands.

Leon came around to the truck. He’d been pulled by the doc. Five kilos down in body weight he was wandering left and right on the track. That was another lesson I learnt from this adventure – look after your mind. Your mind needs food and water to function, but if it stops thinking you stop eating and drinking. You might have the legs of an ox or the heart of a lion but once you stop thinking it doesn’t matter, you’re on the slippery slope out of here.

As I sat on the chair, on the edge of the salt lake, dust blowing in my eyes, crunching gritty Pringles I had a bit of a sense of humour failure. This was bullshit; I hated Mark for sending us north rather than south, I hated the bullshit wind for making an easy stage so hard and I hated the f***ing sand grinding in my f***ing teeth. The idea of starting a second stage in these conditions was complete bullshit. How hard does it have to be? Must no-one finish for it to be worth doing? Couldn’t Mark see that people didn’t come all this distance just to get the sh1t kicked out of them?

I had a second can of solo, the wind eased and I cheered up. Maybe it was the wind, maybe I’d just been dehydrated.

Stage 6 started easily enough with two lines of riders, one in each wheel rut. A couple of sandy sections split the field. With my monster wheels I could cycle over the sand. Each soft section catapulted me up the field.

Jeff told me about his mountain bike crash and his broken neck – he’s lucky to be here at all.

At about 35k I came across Lynton. He wasn’t looking so hot. I got him to eat some lollies and he perked right up. I think you really need to watch your blood sugar on these events. Long before I feel hungry I notice that I start banging into things, or I’m cycling head down along a soft sandy rut and haven’t noticed that the track next to me is as hard as nails. Again it’s your mind – you’ve got to keep thinking.

The wind had dropped completely. It was flat calm. As Lynton and I picked our way through the bushes and rocks @ the edge of the track I marvelled at the dark blue sky ahead. Was that a thunderstorm? Was it coming our way?

A breath of wind.

Flat calm. Maybe we’d be okay. Not far now.

A breath of wind.

Flat calm. It was hot. I could feel the sweat rolling down my back into my shorts. My sores burned.

Flat calm. Drink, drink. Pedal, pedal.

All hell broke loose. A wave of sand hit us square on. I chomped on grit. Another blast. The sand blew around my sunglasses and I had to close my eyes.

Ten K to go – it could have been half an hour but now we were in for the full treatment. We had some spare time on the GPS but even so it was going to be close. Lynton and I worked turn and turn about into the wind.

At the end, we came over the line together, joint first and joint last. No other riders came out of the storm. The Grim Sweeper had them all.

To be fair, the camp that night was crap. The dust storm made it dark early. I was outside, but I was starting to get distressed – whichever way I turned something I couldn’t see kept throwing sand in my eyes. I filled a water bottle and climbed gingerly into the passenger seat, leaving David to try to cook.

I watched Raymond ahead of us. He was silhouetted by the fluorescent light hanging on the side of his Nissan, his hair blowing every which way, clouds of dust rolling over the roof of the car. Trevor knocked on the window.

“I’m off to bed in the back of the Landrover. I’ve fed Alex. I’ll get some food tomorrow.”

The back of his shirt, his neck, even the inside of his ears was covered in a thick layer of red dust.

David passed me a glass of wine and a huge plate of curry. If there was a bit of grit in the curry, who was I to complain. We sat in the cab of the Landcruiser together and watched the storm.

Day 4

Marks next move was a good one. He called for a short stage and a portage along the QAA line. It was a nice fast run.

After Wayne(12) finished we loaded the bikes onto the cars and split into 3 convoys. Perhaps David hung back to avoid the convoy with the TVan, perhaps he just wanted to be in the same convoy as Trevor. We followed Leon in the AyUp Landrover in the last convoy.

That night’s camp was excellent. A wide, flat area with a hard surface and a few trees, we arrived at about 3pm so there was plenty of time for people to clean off the dust, play with their bikes and generally get sorted after the previous nights storm. Having time to socialise made all the difference. The mood was far lighter.

I picked out my 2 cleanest pairs of shorts so I could double up for tomorrows run. I also changed my chain, though in fairness I could have done without.

David (7) came to Richard with a broken derailleur, a victim of the portage. Richard had a spare but when it came to replacing the rear wheel both he and I had a good chin scratch. Apart from the LX hub being full of grit, there was far too much axle sticking out of the left hand side. It looked like someone had removed some of the spacers to make it fit a road bike frame. Anyway, after a couple of failed attempts to put it right we took the easy option and Alex lent David a wheel.

Freddy (18) was running tubeless but with no sealant. Richard had treated his back wheel before, now he added Stan’s to the front.

An early debriefing, a good meal and a couple of glasses of wine and I dossed down by the front wheel of the Landcruiser.

Day 5

The last day and we’re ready for the off.

Roman was carrying a track pump in his backpack. Never a good sign. Again, he had good tyres, just a lack of sealant.

The start led us through a flood plain. There were plants here; the smell of vegetation was striking after the sterile desert. Dust rose from the riders wheels like morning mist.

Freddy clipped one of the ruts, spun his bike on the roof and came down hard. Simon (19) gave him the once over. We’d find out later he’d cracked a rib. Later, on one of the dunes Freddy came past me. I almost shouted “get your weight back” but didn’t. The soft sand on the lee side of the dune ate Freddy’s front wheel, throwing him over the bars. Unpleasant enough, more so with a cracked rib but it wouldn’t have been that bad if his left foot hadn’t come unclipped and scrapped the skin from his shin.

At the next water stop I told Cara, “Freddy’s crashed”

“Yes we know”

“No, Freddy’s crashed again”.

The consensus seems to be not to follow Freddy’s line!

I was happy to pottle along taking pictures.

Little Red marked the end of the dunes. I climbed this with Mike(14) and Rodney(15).

Down on the gravel road I added some air to my tyres. This was the only CO2 canister I used on my own bike. I had a pump as well, but I was feeling too lazy to do the pumping.

I spent some time talking with the kiwi’s – Andrew and John. Amazingly, they bought their bikes from Jakub Postrzygacz, of solo Canning Stock Route fame. He now runs a bike shop in Auckland. You’d have to say that the dual suspension 29ers were a pretty good choice.

Finally, we picked up Mike with a puncture – we gave him a hand fixing it and told him to get ahead up the trail. It was his second puncture that day.

John started a crazy ‘Cattle grid prize’ competition on the way into Bridsville just to burn out any remaining muscle fibres before we finished.

Tarmac. Main Street. Finish line. Pub.

It was over...

Friday, October 9, 2009

The Double Goose

(The Goose is awarded each day for the most stupid act. For example, one year someone set fire to their own vehicle in the middle of the desert. That's a worthy goose.)

In Birdsville, after the presentations, lunch and a shower, I wandered back across to the hotel wearing my prized 'Goose of the Day' T-shirt.

A couple was sitting at one of the tables. I said "Hi!".

"Goose of the day", she said, smiling at my T-shirt.

"Well," I said sitting down. "What do you expect when you take pictures of your own arse? Well, that's not quite right. Technically, I didn't get this T-shirt for taking pictures of my own arse, I got it for telling someone that I took pictures of my own arse. It's an important distinction!"

"Besides", I continued. "If you're alone in a tent in a dust storm with problems 'down below' I think it's a intelligent solution to use a camera. It's better than a mirror. It's got a macro button and everything."

We talked politely for another couple of minutes but when I turned my back for a second the couple vanished. I saw them later, hidden on a table at the far corner. They'd moved to avoid me. At the time, I thought this was rather rude.

It wasn't until long after we'd left Birdsville I realised that the couple was not part of our convoy; they were nothing to do with the race.

Oops! At least they'll remember their visit to Birdsville.

Wednesday, October 7, 2009

Simpson Desert Cycle Challenge - Photos and Video

I had a camera in my bento box as we cycled along and took lots of pictures and video - overall I think it captures the flavour of the SDCC.

Everything is on Picassa - make yourself a cup of tea before you start the slide show as there are a lot of pictures!!

http://picasaweb.google.com.au/alan.keenleside/SimpsonDesertCycleChallenge2009


Wicked Wheels!

One of the advantages I had in the Simpson Desert Cycle Challenge was my monster wheels. I reckon I managed to cycle over 95% of the dunes, rather than having to get off, push and get back on. That really adds up over the course of the race. You can put 200 - 300 metres into a rider for every dune that you clear.

The wheels have also been great for making friends. I've had people cycle past me, do a double take, then come back and ask "What the heck are those?". People commonly ask "What size tyres are those?" - in actual fact the tyres are a normal size, it's the massive Snowcat rims that make the difference.

Years and years ago, I tried to talk my good friends Darren and Ian into entering the Iditasport. Unfortunately, they weren't that stupid, but during my research I found the Snowcats on the web. When I entered the SDCC I already had the Snowcats penciled into my list of things to get.

After a conversation with Simon @ Whicked Wheels I got a pair of 26 inch wheels imported from the US. ChainReaction in the UK supplied XT hubs and DT Swiss spokes. Simon drills the spoke holes offset from the centre; on the front wheel the rotor on the left pushes the flanges of the hub to the right, so the spoke holes are drilled to the right. On the the rear there is a rotor on the left but a much bigger cassette on the right, this pushes the flanges to the left, so the spoke holes are offset to the left. All this means that all four sides of the wheels use the same spoke length and are very easy to dish.

I bought a $100 wheel jig from ebay and made a dishing stick from piece of wood and some long brass screws. For spoke tension I saved some money on buying a tensiometer and used my friends guitar tuner which worked fairly well. I de-stressed the wheels using the wooden handle of a hammer, an idea I got from the excellent Sheldon Brown's article on wheel building. This worked far better than the old 'grab 4 spokes and squeeze' method. (I'm sure Mr Brown would be very happy to know that he continues to make a valuable contribution to cycling). No one step in wheel building is hard, but there are a lot of steps. The secret is to take it slowly.

So, with the wheels built, it was time to test their integrity. I mounted my 2.25 schwalbes with tubes and went for a 100km ride in the Blue Mountains. The 'Double-Double' circuit runs up the Oaks fire trail, up the Ingar, down Andersons then back down the Oaks. I did this a couple of times along with a number of circuits around Manly Dam. I wanted to beat the hell out of the wheels to find any issues early. I found none; the final true took 10 minutes.

The next problem was doing tubeless. Wayne (Elvis) put it succinctly on the Rotorburn forum: Tubeless, Tubeless, Tubeless. (And in hindsight I'd add "Sealant, sealant, sealant" - the SDCC has to be the best advert for Stans Sealant in the world). I bought a Stans conversion kit for my normal wheels to see how it worked, but that wasn't going to help me with my 44mm wide snowcat rims. Instead I googled 'Ghetto Tubeless" and started reading - there is a massive amount of information on the web - web pages, forums and YouTube videos.

In Ghetto Tubeless, you use a 20inch BMX tube cut in half as a rim strip. (That's cut in half longitudinally, dummy!). I drilled the rims to take Schrader valves rather than Presta. This let me get a cheap digital pressure gauge from an automotive store and I figured that the 4WD guys would have plenty of compressors with Schrader fittings. Schwalbe do a BMX tube with a threaded Schrader valve stem and I used these - the valve doesn't wobble around when you try to attach a pump or take a pressure reading. Also, the sealant gums up the valve core after a while and you need to unscrew it to clean it. I found that difficult with free floating valves. I fitted O ring top and bottom to the values to give it a bit of compliance in case it got hit by something.

I sealed the spoke holes with a couple of wraps of duct tape, then added one turn, on each of the left and right sides of the rim, of 3M 12mm double sided foam tape from that well known bike supplier, Office World. This did 2 things, Firstly, it let me stick the 20 inch inner tube to the rim - I was worried the tyre might spin on the rim at low pressure and secondly I have a theory that it helps stop burping (not me obviously, I burped freely throughout the event but the tyre didn't). The diameter of the bead is always greater than the inner diameter of rim. This gives a gap, and the gap is greater with 'non-tubeless' tyres and less with UST tyres (hence UST tyres can be a bit of a bugger to fit). The foam helped reduce this gap by 2x1.5mm = 3mm.

It's a point of pride with me that I've never used tyre levers to mount or dismount a tyre on my mountain bike, but now the tyres were fitting quite tightly and I needed strong thumbs. (Hey people take pride in curious things. I knew a guy at school who could suck a chip up one nostril and blow it out the other)

So far we have rim, duct tape, foam tape and 20inch BMX tube. Normally you'd soap up the tyre and rim strip to help it seal. Instead I painted on Stans sealant with a paint brush, an idea I got from a downhiller on one of the forums. I wanted to glue the tyre to the rim strip.

Inflation happened down at the servo. This is a tricky moment - tyres do burst - on one forum a guy reported being deaf in one ear for a month - but you still need to hold the wheel off the ground and the compressor on the valve.

I had bought a pair of 2.4 Nobby Nics for the race, but I knew that the 2.4 was too big for the rear - it fouled the seat stays. Aaron at Brookvale Bike Factory let me try his 2.35 Kenda Small Block 8 - ideal size and a great tyre.

So there we go tubeless Snowcats. I'll talk about tyre pressures on another post.

Thanks to Simon @ whicked wheels and Wayne for his emphatic directions on tubeless.

In Birdsville I sold the wheels to Andrew (rider 11). I hope he enjoys them riding on the beach in Port Fairy!

Simpson Desert Cycle Challenge - 2009

I recently completed the Simpson Desert Cycle Challenge so I thought I'd post a few comments while they were still fresh in my mind.

Overall, it was a great experience and one that I'm already thinking of repeating.

My sponsorship page is here, and a general race report is here.