Trek Top Fuel 9.9 XTR
Details
Top Fuel 9.9 is a top-shelf full suspension mountain bike for riders who are serious about their fun. Its lightweight carbon frame is spec'd to the hilt with high-end suspension and high-performance parts. And all those fancy bits and bobs are really, really good at hitting the party line.
It's right for you if...
You're looking for the fastest way to a good time on the trail, and you're willing to crack open the piggy bank for top-shelf suspension and lots of lightweight carbon.
The tech you get
A light and stiff full carbon frame, 120mm Fox Factory 34 Step-Cast fork, 115mm of rear travel with a Fox Factory Float shock, and a Shimano XTR 1x12 drivetrain. Plus, wide carbon Bontrager Kovee Pro 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, Bontrager DropLock dual remote suspension lockout, and lots of carbon everywhere.
The final word
With Top Fuel 9.9, you get a smooth, fast ride that doesn't shy away from rowdy trails. An OCLV Mountain Carbon frame, top-of-the-line suspension, and carbon components join forces for a nimble and insanely fun ride.
Why you'll love it
- It’s the ultimate down-country 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
- Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiently. Plus, it controls your dropper post too
- This short-travel bike has a killer suspension setup reminiscent of the all-mighty mullet—it's both efficient and ready to party
- 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.
Will my bike have a curved top tube?
Smaller frames (S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
Pedals sold separately
Due to supply-chain issues, Specs are subject to change without notice.
Specs
| Frame | OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, 115mm travel |
|---|---|
| Fork | Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44mm offset, Kashima Coat, 15mm Kabolt axle, 120mm travel |
| Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
| Rear Shock | Fox Factory Float, 2-position DPS damper, Kashima Coat, 190x45mm |
| Axles |
Front: 110 x 15mm thru-axle Rear: 148 x 12mm thru-axle |
| Rims/Wheels | Bontrager Kovee Pro 30 carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver |
| Tires | Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40'' |
| Crankset | Shimano XTR M9120, Boost (52mm chainline) |
| Chainrings | 32T alloy ring |
| Bottom Bracket | Shimano MT500, 92mm, PressFit |
| 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, 750mm width |
| Tape/Grips | Bontrager XR Trail Elite, alloy lock-on |
| Stem | Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree |
| Brakes | Shimano XTR M9100 hydraulic disc, w/Shimano RT86 180/160mm rotors |
| Saddle | Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width |
| Seat Post | Bontrager Line Elite Dropper, internal routing, 31.6mm, Small: 100mm travel; Medium – Medium/Large: 150mm travel; Large – X-Large: 170mm travel |
* Subject to change without notice.
Videos
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| Gloss Red/Matte Carbon Smoke / Medium | 601842438473 | 1044236 | TOP37236398E |
| Gloss Red/Matte Carbon Smoke / Medium/Large | 601842438466 | 1044237 | TOP38646434E |
| Carbon Blue Smoke/Radioactive Coral / Medium | 601842438411 | 1044242 | TOP44500202L |
| Carbon Blue Smoke/Radioactive Coral / X-Large | 601842438381 | 1044245 | TOP45391985L |
| Matte Raw Carbon/Voodoo Trek Black / Medium | 601842438534 | 1044230 | TOP42747352K |
| Matte Raw Carbon/Voodoo Trek Black / X-Large | 601842438503 | 1044233 | TOP43376785K |