Giant TCX Advanced Pro 1 vs Colnago G4-X Shimano GRX 820 2x
Both are gravel bikes at a similar price. Here is what actually separates them.
The short answer
For a typical all-round rider the Giant TCX Advanced Pro 1 comes out ahead (65% 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 Giant TCX Advanced Pro 1 is £102 cheaper — £3,999 against £4,101.
- Weight
- The Giant TCX Advanced Pro 1 is 1.0kg lighter, which you notice on long climbs more than anywhere else.
- Tyre clearance
- The Giant TCX Advanced Pro 1 takes 45mm tyres against 42mm — the single most common thing buyers wish they had more of.
- Climbing gear
- The Colnago G4-X Shimano GRX 820 2x has the easier bottom gear (23 gear inches against 30), which matters more than weight on anything genuinely steep.
- Shifting
- Only the Giant TCX Advanced Pro 1 has electronic shifting. Crisper and lower maintenance, but it needs charging and costs more to replace.
Side by side
| Spec | TCX Advanced Pro 1 | G4-X Shimano GRX 820 2x |
|---|---|---|
| Price | £3,999 | £4,101 |
| Weight | 8.5 kg | 9.5 kg |
| Frame | carbon | carbon |
| Groupset | SRAM Apex AXS 1x12 | Shimano GRX 820 2x12 mechanical |
| Stack / reach | 1.49 | 1.48 |
| Tyre clearance | 45 mm | 42 mm |
| Lowest gear | 30 in | 23 in |
| Mudguard mounts | No | No |
| Comfort | 65 | 70 |
| Speed | 55 | 34 |
| Climbing | 60 | 62 |
| Value | 12 | 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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