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Trek Top Fuel 9.9 XTR

Trek Top Fuel 9.9 XTR
  • Color: Matte Carbon/Gloss Trek Black
  • Color: Trek Black to Teal Fade
  • Color: Viper Red
$8,999.99 - $9,499.99
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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.


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
Axles Front: 15x110mm
Rear: 12x148mm
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
Chainrings 32T
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
Tape/Grips SRAM TwistLoc
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.


Part Numbers

Option UPC MPN Store SKU
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