2017 Surly · Cargo
2017 Surly Big Dummy geometry
Full frame geometry for the 2017 Surly Big Dummy, size by size — stack, reach, angles and tube lengths.
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Geometry by size
| Size | Stack (mm) | Reach (mm) | Seat angle (°) | Head angle (°) | Head tube (mm) | Top tube (mm) | Seat tube (mm) | Standover (mm) | BB drop (mm) | Chainstay (mm) | Wheelbase (mm) | Fork rake (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S/16 | 566 | 400 | 73 | 72 | 132 | 574 | 406 | 740 | 40 | 827 | 1436 | 43 |
| M/18 | 580 | 418 | 73 | 72 | 146 | 596 | 457 | 772 | 40 | 827 | 1459 | 43 |
| L/20 | 594 | 432 | 73 | 72 | 161 | 614 | 508 | 803 | 40 | 827 | 1477 | 43 |
| XL/22 | 611 | 444 | 73 | 72 | 179 | 632 | 559 | 836 | 40 | 827 | 1495 | 43 |
All measurements in millimetres unless marked (°) for angles.