Cervelo S5 2025 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size 48). Category: road-aero.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| 48 | 490 mm | 367 mm | 71.0° | 73.0° | 410 mm | 973 mm | 73 mm |
| 51 | 515 mm | 376 mm | 72.0° | 73.0° | 410 mm | 976 mm | 73 mm |
| 54 | 540 mm | 384 mm | 73.0° | 73.0° | 410 mm | 980 mm | 70 mm |
| 56 | 565 mm | 392 mm | 73.0° | 73.0° | 410 mm | 994 mm | 70 mm |
| 58 | 590 mm | 401 mm | 73.0° | 73.0° | 410 mm | 1011 mm | 68 mm |
| 61 | 609 mm | 409 mm | 73.0° | 73.0° | 410 mm | 1025 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.