Specialized Stumpjumper 2025 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size S1). Category: mtb-trail.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| S1 | 608 mm | 415 mm | 65.0° | 76.5° | 432 mm | 1170 mm | 40 mm |
| S2 | 618 mm | 435 mm | 65.0° | 76.5° | 432 mm | 1192 mm | 40 mm |
| S3 | 628 mm | 455 mm | 65.0° | 76.5° | 432 mm | 1215 mm | 40 mm |
| S4 | 638 mm | 480 mm | 65.0° | 76.5° | 432 mm | 1242 mm | 40 mm |
| S5 | 648 mm | 505 mm | 65.0° | 76.5° | 432 mm | 1269 mm | 40 mm |
| S6 | 658 mm | 530 mm | 65.0° | 76.5° | 432 mm | 1296 mm | 40 mm |
Similar bikes
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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.