Trek Top Fuel 2025 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size L). Category: mtb-trail.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| L | 612 mm | 477 mm | 65.5° | 75.9° | 440 mm | 1227 mm | 32 mm |
| M | 603 mm | 447 mm | 65.5° | 76.9° | 435 mm | 1188 mm | 32 mm |
| ML | 607 mm | 462 mm | 65.5° | 76.2° | 440 mm | 1210 mm | 32 mm |
| S | 570 mm | 417 mm | 65.5° | 76.0° | 435 mm | 1151 mm | 16 mm |
| XL | 630 mm | 507 mm | 65.5° | 75.2° | 445 mm | 1271 mm | 32 mm |
Similar bikes
Closest matches to this riding position — free, no login.
Size guidance
Stack and reach describe the frame's cockpit envelope better than traditional seat-tube sizing. If you know your preferred stack/reach from a bike that already fits, search within a few millimeters first, then check head angle and chainstay for handling feel. See the glossary for stack, reach, and HTA.