Specialized Aethos 2 Expert - Shimano Ultegra Di2 vs BMC Roadmachine 01 THREE
Both are endurance bikes at a similar price. Here is what actually separates them.
The short answer
These two score within 0 points 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
- Price
- The Specialized Aethos 2 Expert - Shimano Ultegra Di2 is £800 cheaper — £5,499 against £6,299.
- Weight
- The Specialized Aethos 2 Expert - Shimano Ultegra Di2 is 0.9kg lighter, which you notice on long climbs more than anywhere else.
- Riding position
- The BMC Roadmachine 01 THREE sits you more upright (1.53 stack-to-reach against 1.48). The Specialized Aethos 2 Expert - Shimano Ultegra Di2 is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
- Climbing gear
- The BMC Roadmachine 01 THREE has the easier bottom gear (27 gear inches against 32), which matters more than weight on anything genuinely steep.
Side by side
| Spec | Aethos 2 Expert - Shimano Ultegra Di2 | Roadmachine 01 THREE |
|---|---|---|
| Price | £5,499 | £6,299 |
| Weight | 7.1 kg | 8.0 kg |
| Frame | carbon | carbon |
| Groupset | Shimano Ultegra Di2 R8170 2x12 electronic | Shimano Ultegra Di2 2x12 electronic |
| Stack / reach | 1.48 | 1.53 |
| Tyre clearance | 35 mm | 34 mm |
| Lowest gear | 32 in | 27 in |
| Mudguard mounts | No | No |
| Comfort | 47 | 69 |
| Speed | 79 | 57 |
| Climbing | 72 | 73 |
| 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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