2026 Forbidden · MHB
2026 Forbidden Heathen geometry
Full frame geometry for the 2026 Forbidden Heathen, 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 621 | 435 | 76 | 64 | 90 | 590 | 400 | 716 | -50 | 756.4 | 399 | 1155.4 | 44 |
| S2 | 630 | 455 | 76 | 64 | 100 | 612 | 420 | 728 | -50 | 780.8 | 413 | 1192.8 | 44 |
| S3 | 639 | 475 | 76 | 64 | 110 | 634 | 440 | 740 | -62.4 | 805.2 | 427 | 1232.2 | 44 |
| S4 | 648 | 495 | 76 | 64 | 120 | 657 | 470 | 764 | -62.4 | 829.6 | 441 | 1270.6 | 44 |
All measurements in millimetres unless marked (°) for angles.