Trek Top Fuel 9.9 SL


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Trek Top Fuel 9.9 SL is our fastest full-suspension XC mountain bike. Everything on this bike is geared towards helping you go faster and perform better. An OCLV Mountain Carbon frame, carbon components and super-lightweight full-suspension set-up make Top Fuel 9.9 SL a race-ready rocket that flies over gnarly terrain on its way to the podium.

Trek Top Fuel 9.9 SL specifications:


Frame: OCLV Mountain Carbon main frame & stays, ABP, Full Floater, EVO link, tapered head tube, Mino Link, MicroTruss, Control Freak internal routing, Carbon Armor, PF92, Boost148 & G2 Geometry on 29ers, 100 mm travel

Front suspension: RockShox SID SE, DebonAir spring, Motion Control damper, remote lockout, tapered carbon steerer, G2 Geometry w/51 mm offset on 29ers, Boost110, 100 mm travel

Rear suspension: Fox Factory Float DPS, 2-position remote, Kashima Coat, tuned by Trek Suspension Lab, 6.5×1.5˝


Wheels: Bontrager Kovee Pro 30 carbon, Tubeless Ready, 108T Rapid Drive, Boost110 front, Boost148 rear (15.5: 142×12 rear), tubeless strips included, valves sold separately

Tyres: Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29×2.20˝ (13.5 & 15.5: 27.5×2.20˝)


Shifters: SRAM XX1 Eagle, 12 speed

Rear derailleur: SRAM XX1 Eagle, Roller Bearing Clutch

Crank: SRAM XX1 Eagle Dub, 34T Direct Mount

Bottom bracket: SRAM DUB Press Fit, 92 mm

Cassette: SRAM XG-1299, 10-50, 12-speed

Chain: SRAM XX1 Eagle

Pedals: Not included


Saddle: Bontrager Montrose Pro, carbon rails

Seatpost: Bontrager XXX, OCLV Carbon, 31.6 mm, zero offset

Handlebar: Bontrager XXX, OCLV Carbon, 31.8, zero rise

Stem: Bontrager Pro, 31.8 mm, 7-degree

Head set: FSA IS-2, 1-1/8˝ top, 1.5˝ bottom

Brake set: SRAM Level Ultimate carbon-lever hydraulic disc


Weight: 17.5˝ – 9.98 kg / 22 lbs (with tubes)

Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Additional information


17.5", 18.5", 19.5", 21.5"