Trek Top Fuel
Riders who want a fast 29er without Fuel EX travel. XC-curious trail riders.
Shorter-travel and quicker than Fuel EX. It pedals toward XC and still descends like a modern downcountry bike in recent years.
Riders who want a fast 29er without Fuel EX travel. XC-curious trail riders.
Shorter-travel and quicker than Fuel EX. It pedals toward XC and still descends like a modern downcountry bike in recent years.
Riders on older Epics. For 2024-on, use Epic 8 / Epic World Cup pages.
Pre-Epic 8 generations, including Brain-shock years. XC race bikes of their era — steeper and shorter-travel than a modern trail 29er.
Riders on older Epics. For 2024-on, use Epic 8 / Epic World Cup pages. The S-Works kit is the halo build — same geometry as the non-S-Works page for this year, different parts.
Pre-Epic 8 generations, including Brain-shock years. XC race bikes of their era — steeper and shorter-travel than a modern trail 29er.
| Measurement | ![]() TrekTop Fuel 2026 | ![]() SpecializedEpic 2021 | ![]() SpecializedS-Works Epic 2021 |
|---|---|---|---|
| Stackmm | 607 | 611+4 | 611+4 |
| Reachmm | 462 | 460−2 | 460−2 |
| Head tube angle° | 65.5 | 68.5+3.0 | 68.5+3.0 |
| Seat tube angle° | 76.2 | 74.5−1.7 | 74.5−1.7 |
| Chainstaymm | 440 | 435−5 | 435−5 |
| Wheelbasemm | 1210 | 1169−41 | 1169−41 |
| BB dropmm | 32 | 48+16 | 48+16 |
| BB heightmm | — | — | — |
| Standovermm | — | — | — |






| Part | Top Fuel ML | Epic L | S-Works Epic L |
|---|---|---|---|
| Stem | 50 mm | 50 mm | 50 mm |
| Bar | 800 mm | 800 mm | 800 mm |
| Crank | 175 mm | 175 mm | 175 mm |
Put simply, the Trek Top Fuel Gen 4 is one of the best short travel trail bikes I've ridden. It's efficient, has great geometry, and its capable suspension ...
Trek sent out a Top Fuel 9.8 GX AXS that has barely had a chance to taste dirt yet. This size Large test rig weighs bang on 30lbs with a set of Shimano XT Trail ...
Specialized Epic Evo Expert is streets ahead of its rivals in sizing and geometry. Long reach gives you freedom to get creative on any trail.
Specialized Epic Pro ride impressions. The Epic is calm in the rough without feeling sluggish when changing direction. The long reach and slackish head angle ...
Specialized Epic Evo Expert is streets ahead of its rivals in sizing and geometry. Long reach gives you freedom to get creative on any trail.
Specialized Epic Pro ride impressions. The Epic is calm in the rough without feeling sluggish when changing direction. The long reach and slackish head angle ...