Free shipping and professional assembly
Order your bike online and we'll ship to the Trek shop of your choice to be professionally assmebled. All you have to do is pick it up!
“It’s easy to look at the bike from afar and assume this is just another down-country 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"The Top Fuel 9.9 XX1 AXS earned top honours in Enduro’s round-up of best off-road 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 40 mm. 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 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
120 mm 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.
Guided internal cable routing keeps Top Fuel quiet on the trail and maintenance a breeze.
Will my bike have a curved top tube?
The 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. The 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 tyres make it easy to ditch the tubes so you get better traction, fewer flats and less weight. You're ready to roll straight out of the box with the included TLR rim strips, valves and sealant.
This suspension calculator will help you optimise 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 Programme. 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, 120 mm travel |
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Fork | RockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 120 mm travel |
Shock | RockShox Deluxe Ultimate RCT, 185 mm x 50 mm |
Max compatible fork travel | 130mm (541mm axle-to-crown) |
Wheel front | Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle |
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Wheel rear | Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless-Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle |
Skewer rear | Bontrager Switch thru-axle, removable lever |
Tyre | Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29 x 2.40'' |
Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
Rim strip | Bontrager TLR |
Max tyre size | Frame: 29x2.50", Fork: See manufacturer |
Shifter | Shimano XT M8100, 12-speed |
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Rear derailleur | Shimano XT M8100, long cage |
*Crank |
Size:
S, M, M/L, L Shimano XT M8120, 30T, 55 mm chain line, 170 mm length |
Size:
XL Shimano XT M8120, 30T, 55 mm chain line, 175 mm length |
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Bottom bracket | Shimano SM-BB52, 73 mm, threaded external bearing |
Cassette | Shimano XT M8100, 10-51, 12-speed |
Chain | Shimano Ultegra/XT M8100, 12-speed |
Max. chainring size | 1x: 36T round, 34T oval, min 28T |
Saddle | Bontrager Arvada, austenite rails, 138 mm width |
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*Seatpost |
Size:
S Bontrager Line Elite Dropper, 100 mm travel, MaxFlow, internal routing, 34.9 mm, 345 mm length |
Size:
M, M/L Bontrager Line Elite Dropper, 150 mm travel, MaxFlow, internal routing, 34.9 mm, 440 mm length |
|
Size:
L Bontrager Line Elite Dropper, 170 mm travel, MaxFlow, internal routing, 34.9 mm, 485 mm length |
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Size:
XL Bontrager Line Elite Dropper, 200 mm travel, MaxFlow, internal routing, 34.9 mm, 550 mm length |
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*Handlebar |
Size:
S Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 750 mm width |
Size:
M, M/L, L, XL Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 780 mm width |
|
Grips | Bontrager XR Trail Elite, nylon lock-on |
Stem | Bontrager Line Pro, 35 mm, Knock Block, Blendr-compatible, 0-degree, 45 mm length |
Head set | Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8" top, 1.5" bottom |
Brake | Shimano XT M8120 4-piston hydraulic disc |
*Brake rotor |
Size:
S, M, M/L, L, XL Shimano RT76, 6-bolt, 160 mm |
Size:
S, M, M/L, L, XL Shimano RT76, 6-bolt, 180 mm |
Bag | Bontrager BITS Internal Frame Storage Bag |
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Weight | M - 12.61 kg / 27.81 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 136 kg (300 lb). |