BMC Roadmachine Four 2021
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Geometry
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Add to Compare | ||||||
| Reach | 427 | 404 | 444 | 352 | 452 | 436 |
| Stack | 439 | 626 | 667 | 573 | 717 | 544 |
| Top Tube (effective) | 553 | 546 | 653 | 634 | 457 | 584 |
| Seat Tube C-T | 446 | 375 | 442 | 576 | 625 | 518 |
| Head Angle | 64 | 67 | 74 | 72 | 65 | 86 |
| Seat Angle | 61 | 77 | 86 | 70 | 68 | 71 |
| Head Tube | 129 | 137 | 172 | 194 | 194 | 195 |
| Chainstay | 377 | 478 | 367 | 420 | 388 | 475 |
| Wheelbase | 873 | 842 | 1127 | 921 | 866 | 1180 |
| Front Centre | 670 | 665 | 673 | 674 | 678 | 549 |
| BB Drop | 84 | 67 | 71 | 62 | 83 | 75 |
| Fork Rake / Offset | 42 | 44 | 42 | 50 | 46 | 53 |
| Trail | 52 | 70 | 57 | 73 | 75 | 67 |
| Fork Length (A2C) | 365 | 382 | 411 | 354 | 448 | 319 |
| Tyre Max Width | 362 | 454 | 448 | 354 | 438 | 360 |
| Seatpost Length | 280 | 363 | 341 | 344 | 423 | 471 |
| Seatpost Offset | 13 | 16 | 13 | 12 | 16 | 15 |
| Stem Length | 97 | 100 | 96 | 110 | 95 | 138 |
| Stem Angle | ±8 | ±8 | ±8 | ±8 | ±8 | ±8 |
| Crank Length | 141 | 193 | 139 | 172 | 165 | 154 |
| Rider Height | <166 | 166-174 | 172-180 | 178-186 | 184-192 | >190 |
| HB Drop | 124 | 147 | 107 | 117 | 111 | 105 |
| HB Reach | 61 | 65 | 74 | 65 | 72 | 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.
