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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 futz 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 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 bust 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 Top Fuel yours
Opt for light parts and a 120mm fork for a featherweight Top Fuel, or a 140mm fork and longer-stroke 130mm rear shock for extra versatility. Room for a longer dropper and MX wheels lets you customize 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. With the flip of a chip, 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.
Suspension Calculator
This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.
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 Aluminum, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel |
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| Shock | Fox Performance Float DPS, 2-position damper, 185mm x 50mm |
| Max compatible fork travel | 140mm |
| Skewer rear | Bontrager Switch thru axle, removable lever |
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| Max tire size | Frame: 29x2.50", Fork: See manufacturer |
| Max chainring size | 1x: 34T, min 30T |
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| Rotor size | Max brake rotor sizes - Frame: 200mm, min 180mm |
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| Bag | Bontrager BITS Internal Frame Storage Bag |
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| Weight | M - 3.70 kg / 8.16 lbs |
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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). |