Tech from the Pits - World Cup DH, Lenzerheide

Jul 3, 2015
by Paul Aston  


Joe Smith's Nukeproof Pulse

Lenzerheide Randoms

Lenzerheide Randoms
After winning his first British Downhill Series race one month ago, he repeated with another win at Round 4 last weekend. Confidence is riding high and I'm sure Joe will be looking to beat his board's number.

Lenzerheide Randoms
Two name stickers = Big Time
Lenzerheide Randoms
Joe is using a lightweight steel spring spring with a plastic spacer at each end. There are two advantages to this - first the spring is lighter, and second the plastic acts likes a bearing, sliding and stopping the spring from rotating and coiling tighter as it compresses.
Lenzerheide Randoms
Prototype Nukeproof pedals. Sam Hill has a more refined pair, with extra machining and laser etched graphics.

Handlebars?
760mm bars jacked up high, high rise bars and the fork stanchions that are pushed a fair way through the crowns.

Tire pressures?
23/26 psi, standard tubeless. No problems usually - knock on wood

Suspension settings?.
73psi in the forks, compression mid way and reasonably slow rebound. 325lb lightweight steel spring, fairly high compression too.

Frame size?.
Medium, I'm 5'8".

Angleset?.
-1 degree up front, so it's down to 62 degrees now.

Any changes for during this week?.
I've fiddled around with the compression settings, but nothing major. I usually just set my bike up and then leave it for the most part of the year.




Manual Fumic's Massive Chainring

Lenzerheide Randoms
Manual Fumic is a beast, that's a big chainring for a cross country race.




The Return of Mag Wheels?

Lenzerheide Randoms
Bike-Ahead Composites produce these wheels in Germany, along with custom frames for XC racers and a patented bar/stem combo. I spotted this is the Cannondale pits, but the mechanic was keen to point out this is nothing to do with Cannondale Factory Racing. But he did say, "These wheels are incredibly stiff, some argue too stiff, but they are really strong. They are really aero, especially for XC, they really roll a lot better than most others, they're light at 1200grams but really just incredibly stiff. This wheel is adapted to the asymmetric Cannondale rear triangle, the 6mm offset rear end on the FSi."





Ben the Mechanic's Fine Details

Lenzerheide Randoms
Moto foam wherever possible.
Lenzerheide Randoms
Brendon + Dog = Brendawg.
Lenzerheide Randoms
Signature 'Deathgrips'
Lenzerheide Randoms
Tape to cover the crown casting is pretty common at the WC, nowhere for mud to collect and makes the mechanic's life a little easier at the bike wash.

Scott-Gstaad mechanic Ben is another wrench that goes the extra mile. Moto foam in all the smallest nooks and crannies, tape to stop dust build up on the back of the forks, and hours of his life dedicated to cutting down spike tires ready for race day. He mentioned that they have been playing with spokes recently, using flat blade spokes to increase wheel flexibility.




Blenki's Modified Pedals

Lenzerheide Randoms
Sam Blenkinsop's pedals have some interesting added metal. No official word, but I'm guessing it will help to guide the cleat in to place.




Brook Macdonald's Trek

Lenzerheide Randoms
Looks like a.... Session?

Lenzerheide Randoms
Embroidery my Mum would be proud of.
Lenzerheide Randoms
Looks like a....?




GT Cassettes

Lenzerheide Randoms
Gee is running a seven speed cassette, with no spacer to take up the room left by losing some cogs, and both of the smallest cogs are the same size. He was also running carbon Stan's Flow rims.
Lenzerheide Randoms
Taylor Vernon is running a 9-speed cassette, and again both of the smallest cogs are the same size.




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96 Comments
  • 111 2
 theirs simply nothing more enjoyable than roaming the pit bit sections checkin out all the cool trick details.
  • 12 0
 I completely agree always such good reads!
  • 16 1
 Agree with the sentiment, but I can think of at least three things that are more enjoyable.
  • 24 1
 Coitus for one.

Riding an actual bike instead of looking at parts would be up there.

Consuming alcohol or a mind expanding substance might slip in at #3?
  • 2 0
 Yes there is, watching the race itself...
  • 18 0
 can someone explain what the point of having two of the same size cogs is on your cassette
  • 4 1
 extra wumbo power
  • 2 0
 They didn't have a spacer to fit there, so just used an extra cog to fill some room. Pointless from a pedaling standpoint, useful enough from a mechanical one
  • 2 0
 What I love about all this is that I can go into the store and get any of these parts for my own bike, though it won't make my balls drop.
  • 3 0
 You know I think theirs simply nothing better than a proper education. Like they have over their in Muhrica. They really got they're shit together. There really on top of that kinda thing & it shows. Smile
  • 5 0
 in America we are strong believers that fried chicken, guns and fireworks are the only thing we need.
  • 2 0
 I suppose the adjust the deraileur so it won't shift into the last cog. Then if you bend your deraileur during the race and it starts to overshift it's less likely to throw the chain into the frame.
  • 2 0
 The deraileur is locked out of the furthest outboard one to avoid possible pinching of the chain between the frame and cassette. They still need the speed of the 11t so just double er up
  • 28 6
 Brook's got that Bontrager Minion on backwards.
  • 1 1
 i was wondering, what's the story? bontrager branded minion?
  • 6 2
 Actually CST make Maxxis, Bontrager & Specialized Tyres & so there is always going to be an an option open to a Bontrager or Specialized to use Maxxis Moulds albeit with their own label on,
  • 6 0
 Not buying that. Each brand has an "exclusivity" clause in their contract with a company like CST. Otherwise, each brand would use duplicate treads, and that would be like trademark infringement. At least if I had a deal like that, I would not like other tire brands using my tread patterns. And they probably have exclusive rubber compounds too.
  • 1 1
 I was under the impression that the guy that designed the minion and high roller left maxxis and now works for bontrager, thus bringing a few designs with him
  • 1 0
 Trek/Bontrager copied the Minion a couple of years ago. Well, sort of. They turned some knobs around ha ha!
  • 21 0
 Whats the advantage of having the last two cogs the same size ?
  • 15 0
 Ah maybe the last one isnt even used for better chain alignment ? less chance of snapping under power perhaps ? then again they would probably just remove it
  • 7 0
 Chainline and catches the chain from falling off to the outside.
  • 1 0
 Perhaps they didn't have a spare spacer? Also means there isn't a massive gap between the biggest sprocket and the spokes... You could argue that it would aid chain alignment or to prevent the chain from dropping off however if the limits on the dĂ©railleur are set correctly then the chain shouldn't come off either end!
  • 1 0
 Even with correct limits a wide a shift over several cogs under power/rough ground can have the chain slip into the gap between smallest cog and seat/chainstay IMO
  • 19 1
 the added metal bit on Blinky's pedals would/might also aid in protecting the mechanism when the pedal is flipped over. It would act like a shield on the leading edge protecting against rock strikes.
  • 13 0
 im running an 11sp and all of my cogs feel the same size.... im always fucked after a long day!
  • 12 0
 WC racers using blades spokes for more lateral flexibility, weekend warriors wanting the widest, stiffest carbon wheels....
  • 1 0
 Yup! Even in Enduro, not so much Enve 2k$ wheels in the Elite field. Graves running the wheels of the standard SB6c...
  • 2 0
 us weekend warriors are fatter.
  • 14 2
 Anyway, cogs are useless, you don't need to pedal to gwin!
  • 8 1
 That Trek is a great looking bike. Though I am not quite sure what brand rims he is running.
  • 8 1
 I belive the trek teams runs the bontrager line wheelset if I'm not mistaken.
  • 20 0
 check the batteries on your sarcasm detector.
  • 2 0
 Hahahahaha!
  • 4 0
 The first part on Joe Smiths Nukeproof pulse was absolute gold. We need more rider bio type articles on pinkbike. Rider height / weight, age, years riding.. . Bike set up with something more than pretty pictures including bar width/height, stem length, stack height, fork and shock settings.... Would be great info to see how our set ups compare to those at the top of the game.
  • 3 0
 Thanks @Rdot84 I have some more gold on the way, just getting through the transcriptions takes hours!
  • 5 0
 Why is Brook running a RC4 instead of a dhx2?
  • 6 0
 seriously, pinkbike, you must have wondered as well - tell us
  • 2 1
 Looks cooler
  • 5 0
 He's not, its probably just in there while his DHX2 is getting serviced. Check out the raw videos.
  • 1 0
 Can't be the only one wondering .. Why do the newer Fox forks have two small holes with threads in them on the back of the lowers arch??? I've been wondering if it's been to mount a fender but nothing has come to market . I'm sure there could be a solution to mud build up with preexisting holes, rather then taping the back of the arch .
  • 1 0
 I'm no mechanic but i believe (if we're talking about the same thing) they're to adjust air pressure at higher altitudes. But i'm probably mistaken, I've never used mine.
  • 1 0
 I've just looked at mine and we are talking about different things haha, no idea sorry.
  • 4 0
 So is Gwin gonna run down the course holding a pair of rims this round?
  • 3 0
 Looks like I'll be keeping that old titanium 7sp xtr cassette.
  • 2 0
 How does he run pressures below 30psi and not flat on the first rock? I destroy rims and tires at 38psi in the rear.
  • 2 0
 Maybe he picks a better line? J/K... They ARE tubeless right? Man! 38 psi puts a lot of stress on the carcass and rim when it's NOT moving. Hitting a rock would decrease the volume temporarily and increase the stress/pressure at the point of impact. Have you tried much lower pressures?
  • 2 0
 Joe Smith only has 73 psi in his fork, seems on the soft side...
  • 1 0
 Well at 5ft8 he's probs not the heaviest guy around.
  • 2 0
 Matches well with the high bars I suppose
  • 2 0
 It'd be interesting to know how that compares to what Gwinn runs, because he must be the other end of the pressures spectrum for sure.
  • 2 0
 Why the high bars?
  • 2 0
 Confidence inspiring on super steep stuff, easier to unweight the front over obstacles, better control on certain tracks, personal preference?
  • 1 0
 What are the bits on the back of the Fox 40 lowers? looks like something for bump stops/ mudguard? Anyone?
  • 1 0
 air bleeds, just like real motos
  • 1 0
 Ah. Cheers
  • 4 2
 Can some explain why you would have two cassettes the same size??
  • 11 0
 Two cassettes huh?
  • 5 0
 I meant cogs sorry!! haha
  • 5 0
 To move the chainline in slightly so when peddling in the hardest gear the chain isn't rubbing on the guide and the chain pulls straighter so there's less friction.
  • 1 0
 Thanks!!!
  • 4 2
 What's the benefit of running the same size smallest cog?
  • 10 0
 I seem to remember reading that Gee liked the chainline better on smallest cog when it was a bit inboard. The outboard small cog is acting like a spacer. I'll see if I can find an article about it.
  • 1 1
 Reminds me of what we used to call short blocks for road bikes when the gears were actually part of what was called a freewheel (as apposed to a cassette). I could be that there isn't a wide enough variety of gear tooth options when you lower the number of teeth differential between the top and bottom gears?
  • 3 0
 Carbon Stan's Flow rim?
  • 1 1
 Old news
  • 2 0
 Any details though?
  • 14 2
 Oh, sorry. Mixed up the Flow and Bravo. Morphine is s hellova drug
  • 2 1
 Bontrager makes Minions ?
Not exactly, the L shaped side lug is inverted Wink
  • 1 0
 Ok good cause I was worried, I just got a new minion yesterday and put it on, then I saw that and I thought I put it on the wrong way.
  • 1 5
flag yoshikapur (Jul 3, 2015 at 13:55) (Below Threshold)
 Actually CST make Maxxis, Bontrager & Specialized Tyres & so there is always going to be an an option open to a Bontrager or Specialized to use Maxxis Moulds albeit with their own label on,
  • 4 0
 OWN or Make? I would be pretty pissed if I contracted a company to make the tires and use the compounds I designed and they gave my molds and recipes out to a competitor of mine they had a contract with. Hell most people would even sue.

Big difference between owning all the brands you make products for, and simply being contracted to make on their behalf. Theoretically each company would have their own molds and compounds which would not be available to their competitors simply because they lived in the same building.
  • 1 0
 Bontrager don't design their own compounds, Specialized took a Conti compound designer to create compounds for them and in particular for their road market but neither have the facility to make tyres and so outsource to CST.

CST can make tyres for anyone and produce tyres for most of the brands out there, in particular Maxxis, CST are the largest bicycle tyre manufacturer (except for Schwalbe who have their own factories in Vietnam & Indonesia and they only produce for themselves) as mentioned in a previous post you can tweek the overall design,compounds groove spacing & sips and create a new tyre, look at the WTB version of the Muddy Mary this is blatant copy and yet there is very little Schwalbe can do about that or probably want to do about it as the tyre is discontinued & so I would hazard a guess that the moulds on offer to Maxxis are open to Bontrager as the moulding most likely belong to CST in the first place.
  • 3 0
 ...minion dhf
  • 2 0
 more of that please!!!!!!!!!!!!
  • 2 0
 What is the Moto foam for?
  • 2 0
 so mud can't get in there an make the bike heavier and harder to clean.
  • 4 0
 yeah, but there is no mud
  • 1 0
 dust might get in there anyway and you probably don't want to aim the pressure washer directly at the fork seals or pivots!
  • 1 0
 Helps quieten down the chain noise from bouncing off the chain guide.
  • 1 0
 It's a moto thing!
  • 2 0
 The spring on that Vivid looks good. Are there more details?
  • 3 1
 Why is the Moto foam?
  • 1 0
 to avoid mud collecting in the bike
  • 1 0
 mud doesn't stick on moto foam
  • 6 1
 I don't see any mud in Lenzerheide
  • 14 1
 you ask too many questions
  • 1 0
 Maybe it helps generally. Maybe it silences the bike. Maybe heavy rain breaks at the last minute. I think it has happened before.
  • 7 0
 to turn it to 11
  • 1 1
 it's a moto thing!
  • 1 0
 I'm gonna throw one out there and say "looks like a session"
  • 1 0
 is that a 26 in the front and 650B on the back?
  • 1 0
 whats the moto foam for
  • 1 0
 ..
  • 1 4
 Macdonad







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