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 gruelling 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 120 mm Fox Factory 34 Step-Cast Float fork with FIT4 damper, 115 mm 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 racing bike – light, capable and trimmed with high-performance components
Wider Kovee Pro 30 wheels provide better tyre 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 set-up that’s capable in several MTB disciplines, and especially suited to endurance events
Make it yours: it's fully customisable through Project One
Specifications
*spec applies to all sizes unless otherwise noted
Frameset
Mainframe: OCLV Mountain Carbon main frame and stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115 mm travel
Fork: Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, TwistLoc remote, tapered steerer, 44 mm offset , Kashima Coat, Boost110, 15 mm Kabolt axle, 120 mm travel
Shock: Fox Factory Float, 2-position DPS damper, TwistLoc remote, Kashima Coat, tuned by Trek Suspension Lab, 190x45 mm
Wheels
Front Wheel: Bontrager Kovee Pro 30 carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle
Rear Wheel: Bontrager Kovee Pro 30 carbon, Tubeless Ready, 108T Rapid Drive, 6-bolt, SRAM XD driver, Boost148, 12 mm thru axle
Rear Skewer: Bontrager Switch thru axle, removable lever
Tire: Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"
Drivetrain
Shifter: SRAM XX1 Eagle, 12-speed
Rear Derailleur: SRAM XX1 Eagle
*Crank: Size: S
SRAM XX1 Eagle Carbon, DUB, 32T alloy ring, Boost, carbon, 170 mm length
Size: M, M/L, L, XL, XXL
SRAM XX1 Eagle Carbon, DUB, 32T alloy ring, Boost, carbon, 175 mm length
Bottom Bracket: SRAM DUB, 92 mm, PressFit
Cassette: SRAM XG-1295 Eagle, 10-50, 12-speed
Chain: SRAM XX1 Eagle, 12-speed
Components
Saddle: Bontrager Montrose Pro, 7x10 mm carbon rails, 138 mm width
*Seatpost: Size: S
Bontrager Line Elite Dropper, 100 mm travel, internal routing, 31.6 mm, 340 mm length
Size: M, M/L
Bontrager Line Elite Dropper, 150mm travel, internal routing, 31.6 mm, 440mm length
Size: L, XL, XXL
Bontrager Line Elite Dropper, 170mm travel, internal routing, 31.6 mm, 480mm length
Handlebar: Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 750 mm width
*Stem: Size: S, M, M/L
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 0-degree, 60 mm length
Size: M, L, XL, XXL
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 0-degree, 70 mm length
Size: M/L, L, XL
Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 0-degree, 80 mm length
Headset: Knock Block Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Brake: SRAM Level Ultimate hydraulic disc, carbon levers
*Brake Rotor: Size: S, M, M/L, L, XL, XXL
SRAM CenterLine, 6-bolt, round-edge, 160 mm
Size: S, M, M/L, L, XL, XXL
SRAM CenterLine, 6-bolt, round-edge, 180mm
Weight
Weight
M - 11.05 kg / 24.36 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).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production
Buy Trek Top Fuel 9.9 XX1 2020 Mountain Bike online and collect from our Kings Lynn, Gorleston or Norwich bike shop