Trek Domane SL 2025 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size 44). Category: road-endurance.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| 44 | 527 mm | 360 mm | 70.0° | 74.5° | 420 mm | 995 mm | 80 mm |
| 49 | 547 mm | 367 mm | 71.1° | 74.1° | 420 mm | 1002 mm | 80 mm |
| 52 | 568 mm | 372 mm | 71.7° | 73.7° | 420 mm | 1008 mm | 80 mm |
| 54 | 586 mm | 376 mm | 72.1° | 73.4° | 420 mm | 1013 mm | 78 mm |
| 56 | 605 mm | 381 mm | 72.5° | 73.1° | 420 mm | 1020 mm | 78 mm |
| 58 | 625 mm | 386 mm | 72.8° | 72.8° | 422 mm | 1032 mm | 76 mm |
| 61 | 648 mm | 391 mm | 73.0° | 72.5° | 422 mm | 1044 mm | 76 mm |
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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.