BMC Roadmachine Four 2021
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Geometry
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 371 | 363 | 412 | 379 | 438 | 453 |
| Stack | 487 | 488 | 641 | 542 | 627 | 587 |
| Top Tube (effective) | 487 | 532 | 525 | 540 | 605 | 474 |
| Seat Tube C-T | 337 | 400 | 415 | 456 | 477 | 606 |
| Head Angle | 81 | 84 | 80 | 85 | 85 | 73 |
| Seat Angle | 79 | 87 | 87 | 66 | 82 | 63 |
| Head Tube | 90 | 152 | 158 | 147 | 201 | 202 |
| Chainstay | 369 | 378 | 436 | 411 | 435 | 369 |
| Wheelbase | 1113 | 904 | 1042 | 995 | 1144 | 992 |
| Front Centre | 475 | 542 | 489 | 685 | 715 | 685 |
| BB Drop | 60 | 78 | 62 | 68 | 66 | 63 |
| Fork Rake / Offset | 56 | 54 | 45 | 47 | 42 | 43 |
| Trail | 74 | 54 | 73 | 71 | 70 | 52 |
| Fork Length (A2C) | 394 | 335 | 366 | 311 | 421 | 384 |
| Tyre Max Width | 426 | 415 | 407 | 337 | 411 | 479 |
| Seatpost Length | 391 | 337 | 421 | 370 | 334 | 350 |
| Seatpost Offset | 16 | 15 | 15 | 15 | 13 | 13 |
| Stem Length | 105 | 85 | 113 | 121 | 89 | 130 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 | ±8 | ±8 |
| Crank Length | 179 | 148 | 150 | 204 | 144 | 150 |
| Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
| HB Drop | 140 | 139 | 129 | 144 | 101 | 148 |
| HB Reach | 81 | 73 | 57 | 60 | 73 | 77 |
| Data Source | Manufacturer | Manufacturer | Manufacturer | Manufacturer | Manufacturer | Manufacturer |
Standard measurements are in millimeters and degrees. The site attempts to recognize and convert other units back to standard - results may vary.
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There is a Tailored Protection™ kit available for this bike.
