2018 B-Twin · RD
2018 B-Twin Ultra 520 AFGF geometry
Full frame geometry for the 2018 B-Twin Ultra 520 AFGF, 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) | Chainstay (mm) | Wheelbase (mm) |
|---|---|---|---|---|---|---|---|---|---|
| XS | 523 | 375 | 74 | 71.5 | 115 | 525 | 450 | 415 | 983 |
| S | 539 | 380 | 73.5 | 72 | 130 | 535 | 480 | 415 | 989 |
| M | 560 | 389 | 73.5 | 72.5 | 150 | 548 | 500 | 415 | 1000 |
| L | 586 | 391 | 73 | 73 | 175 | 564 | 520 | 415 | 1005 |
| XL | 610 | 394 | 73 | 73 | 200 | 580 | 530 | 415 | 1015 |
All measurements in millimetres unless marked (°) for angles.