Source: https://www.specialized.com/us/en/tarmac-sl8-expert/p/216955
Specialized Tarmac chart coverage
Fully covered
Still unpublished by brand
Values shown are from the manufacturer chart. Unpublished fields are left blank — not estimated.
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| Measurement | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Frame geometry | |||||||
| Stack | 501 mm | 514 mm | 527 mm | 544 mm | 565 mm | 591 mm | 612 mm |
| Reach | 366 mm | 375 mm | 380 mm | 384 mm | 395 mm | 402 mm | 408 mm |
| Stack / Reach | 1.37 | 1.37 | 1.39 | 1.42 | 1.43 | 1.47 | 1.50 |
| Head tube angle | 70.5° | 71.8° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| Seat tube angle (effective) | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
| Seat tube angle (actual) | — | — | — | — | — | — | — |
| Top tube (effective) | 496 mm | 509 mm | 531 mm | 541 mm | 563 mm | 577 mm | 595 mm |
| Head tube length | 99 mm | 109 mm | 120 mm | 137 mm | 157 mm | 184 mm | 204 mm |
| Seat tube length | 433 mm | 445 mm | 456 mm | 473 mm | 494 mm | 515 mm | 545 mm |
| Bottom bracket drop | 74 mm | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Bottom bracket height | 266 mm | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| Chainstay | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Front center | 572 mm | 574 mm | 577 mm | 579 mm | 592 mm | 606 mm | 613 mm |
| Wheelbase | 970 mm | 973 mm | 975 mm | 978 mm | 991 mm | 1006 mm | 1013 mm |
| Fork rake (offset) | 47 mm | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Fork axle to crown | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm |
| Trail | 71 mm | 63 mm | 58 mm | 58 mm | 55 mm | 55 mm | 52 mm |
| Standover | 723 mm | 735 mm | 746 mm | 768 mm | 786 mm | 808 mm | 834 mm |
| Pad / effective stack | 509 mm | 522 mm | 535 mm | 552 mm | 573 mm | 599 mm | 620 mm |
| Pad / effective reach | 363 mm | 372 mm | 377 mm | 381 mm | 393 mm | 400 mm | 406 mm |
| Cockpit | |||||||
| Grip reach | 495.7 mm | 515.7 mm | 531.2 mm | 545.5 mm | 557.0 mm | 573.8 mm | 580.3 mm |
| Grip stack | 555.0 mm | 569.0 mm | 583.1 mm | 601.3 mm | 621.6 mm | 649.4 mm | 669.6 mm |
| Stem length | 70 mm | 80 mm | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm |
| Spacer height | — | — | — | — | — | — | — |
| Bar reach | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm |
| Bar drop | 123 mm | 123 mm | 123 mm | 123 mm | 123 mm | 123 mm | 123 mm |
| Bar flare | — | — | — | — | — | — | — |
| Handlebar width | 360 mm | 380 mm | 400 mm | 420 mm | 420 mm | 440 mm | 440 mm |
| Components (informational) | |||||||
| Crank length | 165 mm | 165 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm | 175 mm |
| Saddle width | 155 mm | 155 mm | 155 mm | 143 mm | 143 mm | 143 mm | 143 mm |
| Seatpost length | 300 mm | 300 mm | 300 mm | 380 mm | 380 mm | 380 mm | 380 mm |
| Tire clearance | — | — | — | — | — | — | — |
| Front travel | — | — | — | — | — | — | — |
| Rear travel | — | — | — | — | — | — | — |