Racers and fast club riders who want the modern Tarmac. If you came off an SL7, check that the stack/reach still matches your size.
The current Specialized race bike: lighter than SL7, still aero, and famously 'it just disappears' if the fit is right. Size by stack/reach — the 54/56 split is where a lot of riders hop.
Riders shopping the newest Tarmac. Compare stack/reach to SL8 before you assume your size letter carries over.
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.
Racers who want Cervelo geometry without halo pricing. Compare stack/reach to R5.
The mid-tier Cervelo race bike: less exotic than R5/S5, still a race position. A lot of riders' first Cervelo that actually fits like a race bike.
| Measurement |  SpecializedTarmac SL8 2024 |  SpecializedTarmac SL9 2026 |  CerveloSoloist 2022 |
|---|---|---|---|
| Stackmm | 544 | 544 | 566+22 |
| Reachmm | 384 | 384 | 392+8 |
| Head tube angle° | 73.0 | 72.5−0.5 | 73.0 |
| Seat tube angle° | 74.0 | 74.0 | 73.0−1.0 |
| Chainstaymm | 410 | 410 | 410 |
| Wheelbasemm | 978 | 986+8 | 995+17 |
| BB dropmm | 72 | 72 | 72 |
| BB heightmm | 268 | 268 | — |
| Standovermm | 768 | 767−1 | — |
| Part | Tarmac SL8 54 | Tarmac SL9 54 | Soloist 56 |
|---|---|---|---|
| Stem | 100 mm | 100 mm | 100 mm |
| Bar | 420 mm | 420 mm | 420 mm |
| Crank | 172.5 mm | 172.5 mm | 172.5 mm |
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