Riders shopping the newest Tarmac. Compare stack/reach to SL8 before you assume your size letter carries over. The S-Works kit is the halo build — same geometry as the non-S-Works page for this year, different parts.
The next Tarmac generation in the catalog window. Treat it as the race-bike successor to SL8: same family, new tubeset — confirm geometry on the year page rather than assuming SL8 numbers.
Riders shopping the newest Tarmac. Compare stack/reach to SL8 before you assume your size letter carries over. The S-Works kit is the halo build — same geometry as the non-S-Works page for this year, different parts.
The next Tarmac generation in the catalog window. Treat it as the race-bike successor to SL8: same family, new tubeset — confirm geometry on the year page rather than assuming SL8 numbers.
| Measurement |  SpecializedS-Works Tarmac SL9 2027 | SpecializedS-Works Tarmac SL9 2026 |
|---|---|---|
| Stackmm | 544 | 544 |
| Reachmm | 384 | 384 |
| Head tube angle° | 72.5 | 72.5 |
| Seat tube angle° | 74.0 | 74.0 |
| Chainstaymm | 410 | 410 |
| Wheelbasemm | 986 | 986 |
| BB dropmm | 72 | 72 |
| BB heightmm | 268 | 268 |
| Standovermm | 767 | 767 |
| Part | S-Works Tarmac SL9 54 | S-Works Tarmac SL9 54 |
|---|---|---|
| Stem | 100 mm | 100 mm |
| Bar | 420 mm | 420 mm |
| Crank | 172.5 mm | 172.5 mm |