Trek Fuel EX 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 | 630 mm | 480 mm | 65.0° | 77.0° | 435 mm | 1238 mm | 35 mm |
| M | 620 mm | 455 mm | 65.0° | 76.8° | 435 mm | 1210 mm | 35 mm |
| S | 610 mm | 430 mm | 65.0° | 76.5° | 435 mm | 1185 mm | 35 mm |
| XL | 644 mm | 505 mm | 65.0° | 77.2° | 435 mm | 1268 mm | 35 mm |
| XXL | 658 mm | 525 mm | 65.0° | 77.4° | 435 mm | 1294 mm | 35 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.