Specialized Tarmac SL8 geometry
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Size56key specs
Stack-to-reach (size 54)1.42More aggressive (lower and longer) than 58% of road frames in the database at comparable sizes.
Tarmac history (size 54)
SL8 returned to SL6 stack (+10mm vs SL7).
| Model | Years | Stack mm | Reach mm | Δ vs SL8 |
|---|---|---|---|---|
| Tarmac SL4 (FACT 9r) | 2017–18 | 543 | 387 | −1 / +3 |
| Tarmac SL5 | 2017 | 543 | 387 | −1 / +3 |
| Tarmac SL6 | 2018–21 | 544 | 384 | same |
| Tarmac SL7 | 2021–23 | 534 | 387 | −10 / +3 |
| Tarmac SL8 | 2024 on | 544 | 384 | this page |
| Tarmac SL9 | 2026 on | 544 | 384 | same |
Closest geometry matches (size 54)
Matched by stack, reach and head tube angle.