2025 Specialized · RD
2025 Specialized Tarmac SL8 geometry
Full frame geometry for the 2025 Specialized Tarmac SL8, 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) | Front centre (mm) | Chainstay (mm) | Wheelbase (mm) | Fork rake (mm) | Trail (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44 | 501 | 366 | 75.5 | 70.5 | 99 | 496 | 433 | 723 | 74 | 572 | 410 | 970 | 47 | 71 |
| 49 | 514 | 375 | 75.5 | 71.8 | 109 | 509 | 445 | 735 | 74 | 574 | 410 | 973 | 47 | 63 |
| 52 | 527 | 380 | 74 | 72.5 | 120 | 531 | 456 | 746 | 74 | 577 | 410 | 975 | 47 | 58 |
| 54 | 544 | 384 | 74 | 73 | 137 | 541 | 473 | 768 | 72 | 579 | 410 | 978 | 44 | 58 |
| 56 | 565 | 395 | 73.5 | 73.5 | 157 | 563 | 494 | 786 | 72 | 592 | 410 | 991 | 44 | 55 |
| 58 | 591 | 402 | 73.5 | 73.5 | 184 | 577 | 515 | 808 | 72 | 606 | 410 | 1006 | 44 | 55 |
| 61 | 612 | 408 | 73 | 74 | 204 | 595 | 545 | 834 | 72 | 613 | 410 | 1013 | 44 | 52 |
All measurements in millimetres unless marked (°) for angles.