BMC Roadmachine Four 2021
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Geometry
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 338 | 364 | 396 | 462 | 397 | 452 |
| Stack | 422 | 516 | 663 | 488 | 603 | 708 |
| Top Tube (effective) | 550 | 464 | 647 | 594 | 656 | 646 |
| Seat Tube C-T | 378 | 498 | 484 | 500 | 491 | 642 |
| Head Angle | 81 | 76 | 63 | 58 | 84 | 78 |
| Seat Angle | 63 | 59 | 85 | 81 | 81 | 88 |
| Head Tube | 113 | 141 | 139 | 198 | 221 | 224 |
| Chainstay | 423 | 334 | 465 | 468 | 413 | 349 |
| Wheelbase | 1128 | 953 | 1137 | 1197 | 1050 | 1099 |
| Front Centre | 673 | 505 | 576 | 686 | 511 | 558 |
| BB Drop | 72 | 59 | 85 | 59 | 83 | 73 |
| Fork Rake / Offset | 46 | 41 | 42 | 50 | 50 | 48 |
| Trail | 64 | 51 | 50 | 57 | 65 | 67 |
| Fork Length (A2C) | 439 | 347 | 441 | 301 | 371 | 388 |
| Tyre Max Width | 323 | 494 | 480 | 454 | 474 | 379 |
| Seatpost Length | 281 | 452 | 392 | 311 | 350 | 387 |
| Seatpost Offset | 12 | 13 | 17 | 16 | 16 | 14 |
| Stem Length | 100 | 107 | 118 | 113 | 115 | 128 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 | ±8 | ±8 |
| Crank Length | 142 | 144 | 201 | 178 | 182 | 149 |
| Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
| HB Drop | 134 | 146 | 105 | 110 | 117 | 132 |
| HB Reach | 68 | 72 | 59 | 63 | 81 | 82 |
| 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.
