BMC Roadmachine Four 2021
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Geometry
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 305 | 450 | 400 | 416 | 446 | 347 |
| Stack | 432 | 434 | 460 | 648 | 488 | 743 |
| Top Tube (effective) | 531 | 506 | 493 | 592 | 514 | 627 |
| Seat Tube C-T | 355 | 384 | 578 | 537 | 524 | 664 |
| Head Angle | 84 | 69 | 66 | 71 | 69 | 64 |
| Seat Angle | 62 | 84 | 75 | 81 | 79 | 79 |
| Head Tube | 111 | 157 | 164 | 179 | 194 | 279 |
| Chainstay | 446 | 466 | 398 | 380 | 413 | 457 |
| Wheelbase | 1037 | 877 | 1126 | 883 | 973 | 1160 |
| Front Centre | 531 | 607 | 495 | 501 | 646 | 559 |
| BB Drop | 64 | 67 | 58 | 82 | 80 | 60 |
| Fork Rake / Offset | 53 | 43 | 42 | 44 | 44 | 50 |
| Trail | 50 | 50 | 53 | 59 | 67 | 58 |
| Fork Length (A2C) | 329 | 395 | 333 | 402 | 418 | 320 |
| Tyre Max Width | 418 | 433 | 351 | 350 | 497 | 414 |
| Seatpost Length | 350 | 308 | 401 | 376 | 398 | 444 |
| Seatpost Offset | 16 | 12 | 15 | 14 | 12 | 15 |
| Stem Length | 78 | 89 | 119 | 107 | 105 | 120 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 | ±8 | ±8 |
| Crank Length | 149 | 197 | 179 | 183 | 156 | 146 |
| Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
| HB Drop | 100 | 101 | 122 | 113 | 147 | 138 |
| HB Reach | 79 | 58 | 79 | 61 | 62 | 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.
