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Excellent condition approved used bike with little to no signs of use
The Colnago G4-X Gravel Bike is built for speed, stability, and control on mixed terrain. Evolving from the G3-X, it features refined geometry for confident handling on descents, clearance for tyres up to 45 mm, and a lightweight full carbon frame and fork.
The G4-X is compatible with both 1x and 2x drivetrains, mechanical or electronic shifting, and uses a threaded T47 bottom bracket for durability and easy maintenance.
A UDH rear hanger and four mounting points make it ready for long-distance and bikepacking setups. The UCI-approved cyclocross frame and flared integrated cockpit ensure it performs in competitive and adventurous scenarios alike.
| — | 48 | 50 | 52 | 54 | 56 |
|---|---|---|---|---|---|
| A | 563 | 584 | 604 | 625 | 639 |
| B | 480 | 500 | 520 | 540 | 560 |
| C | 529 | 540 | 550 | 565 | 582 |
| D | 513 | 525 | 532 | 546 | 564 |
| E | 74.5° | 74° | 73.57° | 72.83° | 72.71° |
| F | 71.52° | 71.62° | 71.92° | 72.49° | 72.88° |
| G | 137 | 156 | 173 | 190 | 202 |
| H | 43 | 43 | 43 | 43 | 43 |
| I | 408 | 410 | 410 | 412 | 414 |
| J | - | - | - | - | - |
| K | 542 | 562 | 579 | 597 | 610 |
| L | 378 | 378 | 379 | 380 | 392 |

If you fall between sizes, we recommend experienced riders selecting a smaller frame which will offer faster handling. A larger bicycle offers more stability.
Should you have any specific questions, please contact us for information and talk to one of our experienced members of staff.
A: Seat Tube (CTR-TOP)
B: Seat Tube (CTR-CTR)
C: Effective Top Tube
D: Actual Top Tube
E: Seat Angle
F: Head Angle
G: Head Tube
H: Stack
I: Chainstay
J: Wheelbase
K: Stack
L: Reach
* All measurements in mm unless otherwise stated
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Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
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