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Aaron Gwin's World Championship Trek?

Aaron Gwin’s mechanic, “Monkey,” probably doesn’t even know which bike the Overall World Cup champion will be riding at this weekend’s World Championships, in Champéry, Switzerland, but our bet is that he’ll be on Trek’s new Session 9.9 Carbon frame. Gwin seems to have done pretty well on it since its launch two World Cups back, and the frame was more or less created for him. Here’s what we know about it: OCLV Carbon main frame and seatstay, though the chainstays are aluminum still (probably a good call by Trek, considering chain slap); Carbon EVO Link; and the 210mm of travel; tapered headtube; and all the rest looks pretty much the same as the Session 88 he started the season on.

Let’s have a look at what else he’s been running as of late.

Rear shock: Fox DHX RC2 with Fox Racing Support and settings, Ti spring, of course
Fork: Fox Factory Series 40 RC2 Fox Racing support and settings
Headset: Cane Creek
Stem: Funn RSX direct-mount, 50mm
Handlebar: Funn Fatboy, 785mm
Grips: ODI Ruffian
Front brake: Shimano Saint, 203mm rotor
Rear brake: Shimano Saint, 180mm rotor
Brake levers: Shimano XTR Trail
Chain guide: Gamut P-30 ISCG-05 chainguide
Rear derailleur: Shimano XTR Shadow Plus
Shifter: Shimano XTR 10-speed
Cassette: Shimano Dura-Ace (or Ultegra at times) 10-speed, 11-23T
Chain: Shimano Dura-Ace 10-speed
Crankset: Shimano Saint, 165mm, 36 or 38 tooth chainring
Bottom bracket: Shimano Saint
Pedals: CrankBrothers Mallet
Rims: Bontrager Rhythm Pro 32 hole (Scandium)
Front hub: Hope Pro2 Evo, 20mm axle
Rear hub: Hope Pro2 Evo, 150mm spacing
Spokes: DT 14/15 spokes, 2x lacing
Front tire: Maxxis Minion Super Tacky 3C 2.5in
Rear tire: Maxxis Minion Super Tacky 3C 2.5in
Saddle: SDG I-Fly
Seatpost: SDG I-Beam Micro Carbon

Total bicycle weight is unknown, but his aluminum Session was coming in at 37.3lb, so with the frame weight of the Session 9.9 unconfirmed (but presumably lighter), and the tricks Monkey is likely to pull, it may be even lighter for Worlds—we assume 35.5 lbs-ish.

As for possible changes from last week, we don’t anticipate too many, other than some blingy colors, a tire change depending on what’s working for him, and maybe a full XTR Trail brake setup to save some weight.

Of course, suspension settings are cards to be held quite closely, especially in the weeks leading  up to Worlds, but Gwin’s setup (both front and rear) is known to be very stiff for his size—moto style. The guy’s been charging hard all year, don’t expect him to back off now.
Note: For information on what bike will actually be available to consumers, Trek already has the stock 2012 Session 9.9 specs up on its site. They don’t yet list the weight for that bike either.

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