BMC Roadmachine Four 2021
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Geometry
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 374 | 435 | 379 | 355 | 368 | 384 |
| Stack | 613 | 523 | 624 | 637 | 504 | 578 |
| Top Tube (effective) | 488 | 510 | 637 | 619 | 547 | 575 |
| Seat Tube C-T | 344 | 404 | 539 | 500 | 625 | 549 |
| Head Angle | 71 | 73 | 84 | 85 | 62 | 83 |
| Seat Angle | 85 | 59 | 79 | 80 | 81 | 85 |
| Head Tube | 106 | 149 | 132 | 163 | 171 | 284 |
| Chainstay | 464 | 460 | 479 | 393 | 343 | 417 |
| Wheelbase | 1046 | 914 | 1154 | 986 | 1140 | 1032 |
| Front Centre | 673 | 660 | 555 | 499 | 626 | 620 |
| BB Drop | 59 | 65 | 77 | 57 | 57 | 61 |
| Fork Rake / Offset | 50 | 59 | 51 | 38 | 45 | 38 |
| Trail | 56 | 69 | 55 | 69 | 60 | 71 |
| Fork Length (A2C) | 427 | 393 | 418 | 301 | 316 | 404 |
| Tyre Max Width | 422 | 491 | 385 | 448 | 388 | 520 |
| Seatpost Length | 392 | 382 | 365 | 409 | 324 | 461 |
| Seatpost Offset | 16 | 12 | 14 | 17 | 14 | 13 |
| Stem Length | 99 | 102 | 111 | 111 | 107 | 96 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 | ±8 | ±8 |
| Crank Length | 195 | 169 | 186 | 187 | 198 | 180 |
| Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
| HB Drop | 133 | 149 | 118 | 140 | 113 | 104 |
| HB Reach | 56 | 81 | 73 | 61 | 76 | 68 |
| 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.
