2026 BMC · ERD
2026 BMC Roadmachine 01 AMP geometry
Full frame geometry for the 2026 BMC Roadmachine 01 AMP, 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) | Front centre (mm) | Chainstay (mm) | Wheelbase (mm) | Fork rake (mm) | Trail (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 47 | 525 | 370 | 74.2 | 71.4 | 112 | 519 | 420 | 728 | 75 | 579 | 420 | 987 | 50 | 63 |
| 51 | 550 | 379 | 74.2 | 71.4 | 138 | 535 | 460 | 755 | 75 | 596 | 420 | 1005 | 50 | 63 |
| 54 | 570 | 383 | 74.2 | 72.2 | 154 | 544 | 500 | 786 | 75 | 594 | 420 | 1002 | 45 | 63 |
| 56 | 595 | 388 | 74.2 | 72.2 | 181 | 556 | 525 | 810 | 75 | 607 | 420 | 1015 | 45 | 63 |
| 58 | 620 | 393 | 74.2 | 72.2 | 207 | 568 | 545 | 829 | 75 | 620 | 420 | 1028 | 45 | 63 |
| 61 | 645 | 398 | 74.2 | 72.2 | 233 | 581 | 575 | 850 | 75 | 633 | 420 | 1041 | 45 | 63 |
All measurements in millimetres unless marked (°) for angles.