Colnago G4-X Shimano GRX 820 2x vs Canyon Grail CF SLX 8 Di2
Both are gravel bikes at a similar price. Here is what actually separates them.
The short answer
For a typical all-round rider the Canyon Grail CF SLX 8 Di2 comes out ahead (62% against 57%). That is not a universal verdict — change the terrain or the priority and the order can flip.
What actually separates them
- Price
- The Colnago G4-X Shimano GRX 820 2x is £98 cheaper — £4,101 against £4,199.
- Weight
- The Canyon Grail CF SLX 8 Di2 is 0.8kg lighter, which you notice on long climbs more than anywhere else.
- Riding position
- The Colnago G4-X Shimano GRX 820 2x sits you more upright (1.48 stack-to-reach against 1.44). The Canyon Grail CF SLX 8 Di2 is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
- Shifting
- Only the Canyon Grail CF SLX 8 Di2 has electronic shifting. Crisper and lower maintenance, but it needs charging and costs more to replace.
Side by side
| Spec | G4-X Shimano GRX 820 2x | Grail CF SLX 8 Di2 |
|---|---|---|
| Price | £4,101 | £4,199 |
| Weight | 9.5 kg | 8.7 kg |
| Frame | carbon | carbon |
| Groupset | Shimano GRX 820 2x12 mechanical | Shimano GRX Di2 RX825 2x12 |
| Stack / reach | 1.48 | 1.44 |
| Tyre clearance | 42 mm | 42 mm |
| Lowest gear | 23 in | 25 in |
| Mudguard mounts | No | No |
| Comfort | 70 | 63 |
| Speed | 34 | 49 |
| Climbing | 62 | 69 |
| Value | 0 | 8 |
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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