2026 Trek · RD
2026 Trek Domane AL 4 Gen 4 geometry
Full frame geometry for the 2026 Trek Domane AL 4 Gen 4, size by size — stack, reach, angles and tube lengths.
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Geometry by size
| Size | Stack (mm) | Reach (mm) | Seat angle (°) | Head angle (°) | Head tube (mm) | Top tube (mm) | Seat tube (mm) | Standover (mm) | BB drop (mm) | Chainstay (mm) | Wheelbase (mm) | Fork rake (mm) | Trail (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44 | 510 | 360 | 74.6 | 70.3 | 95 | 507 | 390 | 657 | 80 | 420 | 983 | 53 | 66 |
| 49 | 540 | 368 | 74.6 | 70.8 | 123 | 516 | 440 | 717 | 80 | 425 | 1001 | 53 | 66 |
| 52 | 561 | 371 | 74.2 | 71.3 | 145 | 530 | 475 | 735 | 80 | 420 | 1003 | 53 | 59 |
| 54 | 575 | 374 | 73.7 | 71.3 | 160 | 542 | 500 | 754 | 80 | 420 | 1010 | 53 | 59 |
| 56 | 591 | 377 | 73.3 | 71 | 175 | 554 | 525 | 776 | 78 | 420 | 1018 | 48 | 61 |
| 58 | 611 | 380 | 73 | 72 | 195 | 567 | 548 | 796 | 78 | 425 | 1022 | 48 | 60 |
| 61 | 646 | 385 | 72.7 | 72.1 | 235 | 586 | 576 | 842 | 75 | 425 | 1038 | 48 | 63 |
All measurements in millimetres unless marked (°) for angles.