Specialized Tarmac SL8 Pro - SRAM Force AXS vs Specialized Tarmac SL8 Pro - Shimano Ultegra Di2
Both are race bikes at a similar price. Here is what actually separates them.
The short answer
These two score within 1 point of each other for a typical all-round rider, so there is no single winner — the right one depends entirely on which of the differences below you care about.
What actually separates them
- Climbing gear
- The Specialized Tarmac SL8 Pro - SRAM Force AXS has the easier bottom gear (29 gear inches against 32), which matters more than weight on anything genuinely steep.
Side by side
| Spec | Tarmac SL8 Pro - SRAM Force AXS | Tarmac SL8 Pro - Shimano Ultegra Di2 |
|---|---|---|
| Price | £7,249 | £7,249 |
| Weight | 7.3 kg | 7.3 kg |
| Frame | carbon | carbon |
| Groupset | SRAM Force AXS E1 2x12 electronic | Shimano Ultegra Di2 R8170 2x12 electronic |
| Stack / reach | 1.43 | 1.43 |
| Tyre clearance | 32 mm | 32 mm |
| Lowest gear | 29 in | 32 in |
| Mudguard mounts | No | No |
| Comfort | 37 | 37 |
| Speed | 84 | 84 |
| Climbing | 79 | 71 |
| Value | 0 | 0 |
Neither might be the right answer
This page assumes an average rider. Tell us how you actually ride and we will rank these two against everything else at the price.
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