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Trek Top Fuel 9.9

Trek Top Fuel 9.9
  • Color: Matte Carbon/Gloss Trek Black
  • Color: Matte Carbon/Gloss Trek Black
  • Color: Trek Black to Teal Fade
  • Color: Trek Black to Teal Fade
  • Color: Viper Red
  • Color: Viper Red
This item is currently not available.


Top Fuel 9.9 is our top-of-the-line full suspension mountain bike for endurance racers and multi-discipline riders. This down-country rig is built with an OCLV Mountain Carbon frame and spec'd to the hilt with high-performance parts, including a Fox Factory 34 Step-Cast fork, a SRAM XX1 Eagle drivetrain, carbon wheels, and SRAM Level Ultimate brakes. Top Fuel 9.9 flies through singletrack and rips descents, but it really shines when pushed to its full potential during grueling endurance races.

It's right for you if...
You've set your sights on endurance racing, and want every lightweight and performance advantage. You're looking for an efficient yet trail-capable rig that's fast on flats, soaks up rough terrain, and keeps you going mile after brutal mile.

The tech you get
A full OCLV Mountain Carbon frame, top-of-the-line 120mm Fox Factory 34 Step-Cast Float fork with GRIP damper, 115mm of rear travel with a Fox Factory Float shock, and a 1x12 SRAM XX1 Eagle drivetrain. Plus, wide carbon Bontrager Kovee Elite 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, TwistLoc dual remote suspension lockout, Bontrager Line Elite Dropper, Bontrager Kovee Pro OCLV Carbon handlebars, and SRAM Level Ultimate brakes with carbon levers.

The final word
The Top Fuel 9.9 is built for speed and capability on any terrain, but its efficient, short-travel design excels in endurance events. An OCLV Mountain Carbon frame, top-of-the-line suspension, and carbon components come together for a nimble and insanely fun ride at any distance.

Why you'll love it
- It’s the ultimate endurance race bike—light, capable, and trimmed with high-performance components
- Wider Kovee Pro 30 wheels provide better tire support so you can run lower pressure and get more traction
- TwistLoc simultaneously locks out front and rear shocks for climbs and sprints with the simple Grip Shift-like motion
- This short-travel trail bike gives you a suspension setup that’s capable in several MTB disciplines, and especially suited to endurance events
- Make it yours: it's fully customizable through Project One


Frame OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115mm travel
Fork Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, TwistLoc remote, tapered steerer, 44mm offset , Kashima Coat, Boost110, 15mm Kabolt axle, 120mm travel
Headset Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Rear Shock Fox Factory Float, 2-position DPS damper, TwistLoc remote, Kashima Coat, tuned by Trek Suspension Lab, 190x45mm
Axles Front: 110x15mm
Rear: 148x12mm
Rims/Wheels Bontrager Kovee Pro 30 carbon, Tubeless Ready, 6-bolt
Tires Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40"
Crankset SRAM XX1 Eagle Carbon, DUB, 32T alloy ring, Boost, carbon
Bottom Bracket SRAM DUB, 92mm, PressFit
Chain SRAM XX1 Eagle, 12 speed
Rear Derailleur SRAM XX1 Eagle
Cassette/Rear Cogs SRAM XG-1295 Eagle, 10-50, 12 speed
Shifters SRAM XX1 Eagle, 12 speed
Handlebars Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
Tape/Grips SRAM TwistLoc
Stem Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree
Brakes SRAM Level Ultimate hydraulic disc, carbon levers, 180mm front rotor, 160mm rear rotor
Saddle Bontrager Montrose Elite, titanium rails
Seat Post Bontrager Line Elite Dropper, internal routing, 31.6mm

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Matte Carbon/Gloss Trek Black / Small 601842112021 585045 TOP38152565K
Matte Carbon/Gloss Trek Black / Medium 601842111949 585046 TOP38200490K
Matte Carbon/Gloss Trek Black / Medium/Large 601842112038 585047 TOP39377022K
Matte Carbon/Gloss Trek Black / Large 601842111956 585048 TOP3820626K
Matte Carbon/Gloss Trek Black / X-Large 601842111994 585049 TOP39761429K
Trek Black to Teal Fade / Small 601842112007 585051 TOP32248448E
Trek Black to Teal Fade / Medium 601842112045 585052 TOP3278802E
Trek Black to Teal Fade / Medium/Large 601842111970 585053 TOP33573065E
Trek Black to Teal Fade / Large 601842111932 585054 TOP32879888E
Trek Black to Teal Fade / X-Large 601842112014 585055 TOP33349967E
Viper Red / Small 601842223710 585093 TOP21426834D
Viper Red / Medium 601842223703 585094 TOP21288066D
Viper Red / Large 601842223680 585096 TOP21400242D
Viper Red / X-Large 601842223673 585097 TOP22302829D
Viper Red / Medium/Large 601842223697 585095 TOP22484757D
Viper Red / XX-Large 601842223666 585098 TOP23336408D