BMC Roadmachine Four 2021
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Geometry
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 448 | 443 | 363 | 395 | 365 | 369 |
| Stack | 615 | 555 | 566 | 575 | 566 | 587 |
| Top Tube (effective) | 580 | 484 | 437 | 554 | 527 | 664 |
| Seat Tube C-T | 468 | 529 | 571 | 522 | 593 | 669 |
| Head Angle | 84 | 60 | 66 | 63 | 76 | 76 |
| Seat Angle | 64 | 83 | 79 | 71 | 66 | 70 |
| Head Tube | 118 | 126 | 153 | 147 | 172 | 245 |
| Chainstay | 415 | 437 | 466 | 477 | 447 | 366 |
| Wheelbase | 864 | 1040 | 829 | 1077 | 925 | 1238 |
| Front Centre | 562 | 637 | 478 | 611 | 511 | 693 |
| BB Drop | 77 | 74 | 82 | 60 | 62 | 64 |
| Fork Rake / Offset | 40 | 47 | 43 | 36 | 42 | 41 |
| Trail | 66 | 53 | 65 | 56 | 53 | 52 |
| Fork Length (A2C) | 313 | 335 | 373 | 392 | 335 | 391 |
| Tyre Max Width | 384 | 432 | 406 | 410 | 452 | 465 |
| Seatpost Length | 318 | 370 | 322 | 391 | 454 | 402 |
| Seatpost Offset | 16 | 15 | 12 | 17 | 16 | 13 |
| Stem Length | 107 | 76 | 110 | 88 | 92 | 113 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 | ±8 | ±8 |
| Crank Length | 154 | 141 | 178 | 156 | 197 | 158 |
| Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
| HB Drop | 104 | 144 | 113 | 145 | 129 | 126 |
| HB Reach | 71 | 80 | 59 | 59 | 74 | 58 |
| 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.
