Factor O2 VAM 2026 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size 49). Category: road-race.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| 49 | 509 mm | 370 mm | 71.5° | 74.5° | 405 mm | 971 mm | 72 mm |
| 52 | 527 mm | 376 mm | 72.5° | 74.0° | 405 mm | 977 mm | 72 mm |
| 54 | 546 mm | 381 mm | 73.0° | 73.5° | 405 mm | 983 mm | 72 mm |
| 56 | 566 mm | 388 mm | 73.3° | 73.2° | 405 mm | 994 mm | 70 mm |
| 58 | 587 mm | 395 mm | 73.5° | 73.0° | 405 mm | 1007 mm | 70 mm |
| 61 | 609 mm | 402 mm | 73.8° | 72.8° | 405 mm | 1019 mm | 68 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.