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You want fun. All of it. But you’re also serious about speed, and want a bike that's spec'd accordingly. You're looking for a quick down-country shredder that's fast on flats, soaks up rough terrain, and has the latest in fully wireless electronic components.
A full carbon frame, super-plush 130mm RockShox Pike Ultimate fork with a Charger 3 RC2 damper that gives you more adjustment. 120mm of rear travel with a Deluxe Ultimate shock, and a fully wireless SRAM XX1 Eagle AXS drivetrain. Plus, wide carbon Bontrager Line Pro 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, wireless RockShox Reverb AXS dropper, and SRAM Level Ultimate brakes with carbon levers.
The best of the best. You get all the fast down-country fun you can handle, with all of the latest and greatest in suspension and wireless drivetrain tech.
“It’s easy to look at the bike from afar and assume this is just another downcountry rig... It wasn’t until I’d fired it over some jumps, nosed it down the odd steep chute and slung it through my test loops’ berms that I realised the Top Fuel is, simply put, a bloody brilliant trail bike.”
Read more"Top Fuel 9.9 XX1 AXS earned top honors in Enduro’s round-up of best downcountry rippers, thanks to the bike’s clean look, practical details, and progressive suspension."
Read more"The Top Fuel is a very capable descender, but its well-proportioned geometry is just half the story. It manages to strike a great balance between grip, tracking, and precision. The whole bike seems to just will you on to hit things faster and with more precision."
Read more"The new Top Fuel is also much more composed on rough and fast descents. Thanks to the longer reach and slacker head angle, the overall wheelbase length has grown by almost 40mm. That’s huge, and it offers a vastly more planted feel at speed. Along with the big tyres and active suspension, this really is a solid little trail bike."
Read moreWhen it comes to being a better trail rider, practice makes perfect. Get seven tips from Pinkbike’s Christina Chappetta that will have you setting PR's and riding with more confidence in no time.
Read moreActive Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
Quick and in control
120mm of rear travel combined with progressive trail geometry gives you a fast, responsive ride that helps you keep your cool when the trail turns rowdy.
Internal frame storage makes it easy to ditch the pack and still carry your ride essentials.
Cleverly integrated into the steerer tube, the included BITS multi-tool has everything you need for trailside adjustments and repairs.
Guided internal cable routing keeps Top Fuel quiet on the trail and maintenance a breeze.
Will my bike have a curved top tube?
Smaller frames (XS and S) have a curved top tube. This design makes for a lower standover height, which allows shorter riders to straddle the 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.
Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. You're ready to roll right out of the box with the included TLR rim strips, valves, and sealant.
This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Program. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.
Bigger is better. The oversized seat tube diameter gives more support and strength for longer travel droppers, and allows for more robust, durable internals that work faster.
More robust than pressfit, threaded BBs hold up in nasty conditions and make servicing easier.
International Standard Chain Guide mounts offer easy chain guide installation and adjustment.
Knock Block has your frame's back when things go wrong. It prevents your handlebars from spinning all the way around in a crash, so your hoses won't get yanked, and your controls won't hit the top tube.
Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.
Frame | OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120mm travel |
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Fork | RockShox Pike Ultimate, DebonAir spring, Charger 3 RC2 damper, 44mm offset, Boost110, Maxle Stealth, 130mm travel |
Shock | RockShox Deluxe Ultimate RCT, 185mm x 50mm |
Max compatible fork travel | 130mm (541mm axle-to-crown) |
Wheel front | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
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Wheel rear | Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, SRAM XD driver, Boost148, 12mm thru axle |
Tire | Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29x2.40'' |
Tire part | Bontrager TLR sealant, 6oz |
Max tire size | Frame: 29x2.5" Fork: see manufacturer |
Shifter | SRAM Eagle AXS, wireless, 12 speed |
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Rear derailleur | SRAM XX1 Eagle AXS |
*Crank |
Size:
S, M, M/L, L SRAM XX1 Eagle, DUB, 30T alloy ring, 55mm chainline, 170mm length |
Size:
XL SRAM XX1 Eagle, DUB, 30T alloy ring, 55mm chainline, 175mm length |
|
Bottom bracket | SRAM DUB MTB Wide, 73mm, BSA threaded |
Cassette | SRAM Eagle XG-1299, 10-52, 12 speed |
Chain | SRAM XX1 Eagle, 12 speed |
Max chainring size | Max: 36T (oval - 34T) Min: 28T |
Saddle | Bontrager Arvada, austenite rails, 138mm width |
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*Seatpost |
Size:
S RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length |
Size:
M, M/L RockShox Reverb AXS, 150mm travel, wireless, 34.9mm, 440mm length |
|
Size:
L, XL RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length |
|
*Handlebar/stem (integrated) |
Size:
S Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 35mm stem length |
Size:
M, M/L, L, XL Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 27.5mm handlebar rise, 820mm width, 0 degree stem rise, 45mm stem length |
|
Headset | Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom |
Brake | SRAM G2 Ultimate hydraulic disc, carbon levers |
*Brake rotor |
Size:
S, M, M/L, L, XL SRAM HS2, 6-bolt, 160mm |
Size:
S, M, M/L, L, XL SRAM HS2, 6-bolt, 180mm |
|
Rotor size | Max brake rotor sizes: Front see fork manufacturer, rear 180mm |
Battery | SRAM eTap battery pack (with charger) |
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Weight | M - 11.90 kg / 26.24 lbs (with TLR sealant, no tubes) |
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Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
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