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 Shimano XTR drivetrain with carbon cranks, carbon wheels, and Shimano XTR 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 FIT4 damper, 115mm of rear travel with a FOX Factory Float shock, and a 1x12 Shimano XTR drivetrain with E*thirteen carbon cranks. Plus, wide carbon Bontrager Kovee Pro 30 wheels, TwistLoc dual remote suspension lockout, Bontrager Line Elite Dropper, Bontrager Kovee XXX OCLV Carbon handlebars, and Shimano XTR brakes.
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
A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.
Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.
Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.
Pedals sold separately
|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, dual remote, tapered steerer, 44mm offset, Kashima Coat, Boost110, 15mm bolt-on 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|
|Rims/Wheels||Bontrager Kovee Pro 30 carbon, Tubeless Ready, 6-bolt, Boost110 front, Boost148 rear|
|Tires||Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40"|
|Crankset||Shimano XTR 9120|
|Bottom Bracket||Shimano XTR PF92|
|Chain||Shimano XTR M9100, 12 speed|
|Rear Derailleur||Shimano XTR M9100, Shadow Plus, long cage, 51T max cog|
|Cassette/Rear Cogs||Shimano XTR M9100, 10-51, 12 speed|
|Shifters||Shimano XTR M9100, 12 speed|
|Handlebars||Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise|
|Stem||Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree|
|Brakes||Shimano XTR M9100 hydraulic disc|
|Saddle||Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width|
|Seat Post||Bontrager Line Elite Dropper, internal routing, 31.6mm|
* Subject to change without notice.
|Matte Carbon/Gloss Trek Black / Small||601842223895||595509||TOP38919221K|
|Matte Carbon/Gloss Trek Black / Medium||601842223888||595510||TOP38967668K|
|Matte Carbon/Gloss Trek Black / Medium/Large||601842223871||595511||TOP39459720K|
|Matte Carbon/Gloss Trek Black / Large||601842223864||595512||TOP38537547K|
|Matte Carbon/Gloss Trek Black / X-Large||601842223857||595513||TOP39421044K|
|Matte Carbon/Gloss Trek Black / XX-Large||601842223840||595514||TOP40421622K|
|Trek Black to Teal Fade / Small||601842223833||595515||TOP32117740E|
|Trek Black to Teal Fade / Medium||601842223826||595516||TOP32505167E|
|Trek Black to Teal Fade / Medium/Large||601842223819||595517||TOP33418899E|
|Trek Black to Teal Fade / Large||601842223802||595518||TOP32950059E|
|Trek Black to Teal Fade / X-Large||601842223796||595519||TOP33914312E|
|Trek Black to Teal Fade / XX-Large||601842223789||595520||TOP34662809E|
|Viper Red / Small||601842223772||595521||TOP21744896D|
|Viper Red / Medium||601842223765||595522||TOP21294639D|
|Viper Red / Medium/Large||601842223758||595523||TOP22654600D|
|Viper Red / Large||601842223741||595524||TOP21143664D|
|Viper Red / X-Large||601842223734||595525||TOP22789017D|
|Viper Red / XX-Large||601842223727||595526||TOP23494812D|