Trek Boone 2027 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size 49). Category: cyclocross.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| 49 | 531 mm | 375 mm | 71.0° | 74.5° | 425 mm | 1009 mm | 68 mm |
| 52 | 549 mm | 382 mm | 71.5° | 74.0° | 425 mm | 1019 mm | 68 mm |
| 54 | 566 mm | 388 mm | 72.0° | 73.7° | 425 mm | 1029 mm | 66 mm |
| 56 | 584 mm | 394 mm | 72.0° | 73.5° | 425 mm | 1039 mm | 66 mm |
| 58 | 603 mm | 400 mm | 72.5° | 73.2° | 425 mm | 1049 mm | 64 mm |
| 61 | 623 mm | 406 mm | 72.5° | 73.0° | 425 mm | 1059 mm | 64 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.