Video pro bike: Aaron Gwin’s Trek Session 88

US downhill racer Aaron Gwin is leading the 2011 UCI Mountain Bike World Cup series after winning the first round in Pietermaritzburg, South Africa last month, so all eyes will be on him at today’s second round in Fort William, Scotland – particularly as he was fastest in yesterday’s qualifying.

He’s on a new bike this season – the Trek Session 88 – following a switch from Yeti/Fox Racing Shox to Trek World Racing late last year, and it’s a very different beast from his old Yeti 303DH.

We grabbed a few minutes with Gwin and his mechanic, David ‘Monkey’ Vasquez, to get the lowdown on the bike. Check out the video below. You can find out more about Aaron’s Shimano XTR Shadow Plus rear derailleur in our review.

Bike specification

• Frame: Trek Session 88
• Rear shock: Fox DHX RC4
• Fork: Fox 40 RC2
• 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 device: Gamut
• Rear derailleur: Shimano XTR Shadow Plus
• Shifter: Shimano XTR 10-speed
• Cassette: Shimano Dura-Ace 10-speed, 11-23T
• Chain: Shimano Dura-Ace 10-speed
• Crankset: Shimano Saint
• Bottom bracket: Shimano Saint
• Pedals: CrankBrothers Mallet
• Rims: Bontrager scandium
• Front hub: Hope Pro2 Evo, 20mm axle
• Rear hub: Hope Pro2 Evo, 150mm
• Spokes: DT Swiss
• Front tyre: Maxxis Minion Super Tacky 2.5in
• Rear tyre: Maxxis Minion Super Tacky 2.5in
• Saddle: SDG I-Fly
• Seatpost: SDG I-Beam Micro Carbon
• Total bicycle weight: 37.3lb (16.9kg)