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"More capable & adaptable than ever"
"The Top Fuel manages to feel quick and efficient without any harshness, a feat that's not easy to accomplish."
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"Increased versatility and broader appeal"
"The added ability to fiddle, with not just head/seat angle and BB height, but also play with shock progression AND maybe even long-stroke the bike for more travel is appealing."
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"Enthusiastic and sporty, offering up impressive pedal efficiency with loads of grip."
"Mind you, it only took a few pedal strokes to appreciate the Top Fuel’s efficient and responsive demeanour.[...] Heading across rockier singletrack, the new bike is noticeably sprightlier and springier than its predecessor."
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"Dear lord, this bike is a hoot"
"I keep finding myself on top of bigger moves than Trek would probably recommend for the Top Fuel, and I keep bouncing out the bottom even more in love with the bike."
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"light, lively and efficient"
"... the Top Fuel stands out for being just a touch more composed and forgiving (in terms of its suspension performance) than most of the bikes that it compares most directly to on paper."
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Service manual
Time to get out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values and platform-specific tech instructions below.
Get it hereWhich Generation?
Save some cash on the light and fast Top Fuel Gen 3, or go even lighter with more adjustability with Top Fuel Gen 4
Learn moreProduct features
Make the Top Fuel yours
Opt for light parts and a 120 mm fork for a featherweight Top Fuel, or a 140 mm fork and longer-stroke 130 mm rear shock for extra versatility. Room for a longer dropper and MX wheels lets you customise the Top Fuel into an ultimate playful trail whip.
4-way Mino Link
Easily adjust the suspension and geometry four different ways for where and how you ride. At the flip of a coin, you can ride with more or less progressive suspension and tweak your geometry for a slacker head tube and lower BB, or steeper head tube and higher BB.
New internal storage with new BITS bags
New internal frame storage bags make it easy to ditch the pack and still carry your ride essentials.
Active Braking Pivot
Active 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.
Shimano XT
Shimano XT is the original mountain bike groupset and trusted by generations of mountain bikers around the world. Whatever the trail, wherever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.
You almost forgot your pedals
This bike doesn’t come with pedals because you'll have a better ride if you choose your own. Explore the pedal guide to find the best pedals for your riding style. Reach for flat pedals for simple versatility or go for clipless MTB pedals if you want control and efficiency.
See the guideSuspension Calculator
This suspension calculator will help you optimise your suspension settings for your riding weight. Simply follow the steps to find your best set up.
Learn moreComplete Tubeless System
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.
Learn moreOversized 34.9mm dropper post
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.
ISCG mounts
International Standard Chain-Guide mounts offer easy chain-guide installation and adjustment.
Threaded bottom bracket
More robust than pressfit, threaded BBs hold up in nasty conditions and make servicing easier.
| Frame | Alpha Platinum Aluminium, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120 mm travel |
|---|---|
| Fork | Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 130 mm travel |
| Shock | Fox Performance Float DPS, 3-position damper, 185 mm x 50 mm |
| Max compatible fork travel | 140 mm |
| *Wheel front |
Size:
S Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5" |
|---|---|
|
Size:
M, ML, L, XL Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29" |
|
| *Wheel rear |
Size:
S Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 27.5" |
|
Size:
M, ML, L, XL Bontrager Line Comp 30, Tubeless-Ready, Rapid Drive 54, 6-bolt, Boost148, 12 mm thru axle |
|
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| *Tyre |
Size:
S Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40" |
|
Size:
M, ML, L, XL Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" |
|
| 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 |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| Crank | Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length |
| Bottom bracket | Shimano BB-MT501 BSA |
| Cassette | Shimano SLX M7100, 10-51T, 12-speed |
| Chain | Shimano SLX M7100, 12-speed |
| Max. chainring size | 1x: 34T, min 30T |
| Saddle | Bontrager Verse P3, chromoly rails |
|---|---|
| *Seatpost |
Size:
S Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9 mm, 310mm length |
|
Size:
M, ML, L, XL Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 34.9 mm, 450 mm length |
|
| Handlebar | Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Stem | Bontrager Elite, 35 mm, 0-degree, 45 mm length |
| Brake | Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper |
| Brake rotor | Shimano RT66, 6-bolt, 180 mm |
| Rotor size | Max brake rotor sizes – Frame: 200 mm, min 180 mm, Fork: see fork manufacturer |
| Bag | Bontrager BITS Internal Frame Storage Bag |
|---|
| Weight | M - 14.58 kg / 32.15 lbs (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |