Cube Attain C:62 SLX vs Specialized Roubaix SL8 - Shimano Tiagra
Both are endurance bikes at a similar price. Here is what actually separates them.
The short answer
For a typical all-round rider the Cube Attain C:62 SLX comes out ahead (81% against 74%). That is not a universal verdict — change the terrain or the priority and the order can flip.
What actually separates them
- Weight
- The Cube Attain C:62 SLX is 0.9kg lighter, which you notice on long climbs more than anywhere else.
- Riding position
- The Specialized Roubaix SL8 - Shimano Tiagra sits you more upright (1.56 stack-to-reach against 1.54). The Cube Attain C:62 SLX is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
- Tyre clearance
- The Specialized Roubaix SL8 - Shimano Tiagra takes 40mm tyres against 36mm — the single most common thing buyers wish they had more of.
- Shifting
- Only the Cube Attain C:62 SLX has electronic shifting. Crisper and lower maintenance, but it needs charging and costs more to replace.
- Mudguards
- Only the Specialized Roubaix SL8 - Shimano Tiagra takes mudguards, which decides whether it can be your winter bike.
Side by side
| Spec | Attain C:62 SLX | Roubaix SL8 - Shimano Tiagra |
|---|---|---|
| Price | £2,499 | £2,499 |
| Weight | 8.5 kg | 9.4 kg |
| Frame | carbon | carbon |
| Groupset | Shimano 105 Di2 R7170 2x12 electronic | Shimano Tiagra R4000 mechanical |
| Stack / reach | 1.54 | 1.56 |
| Tyre clearance | 36 mm | 40 mm |
| Lowest gear | 27 in | 26 in |
| Mudguard mounts | No | Yes |
| Comfort | 70 | 73 |
| Speed | 51 | 37 |
| Climbing | 66 | 58 |
| Value | 54 | 25 |
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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