Colnago G4-X Frameset
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Colnago G4-X Frameset
Product Details
The Colnago G4-X gravel bike is engineered for high-performance gravel racing, combining lightweight construction with the advanced manufacturing techniques used in Colnago’s top-tier road platforms. Built using the same monocoque carbon process developed for Tadej Pogačar’s race-winning bikes, the G4-X frame delivers exceptional stiffness and responsiveness for riders pushing the pace on demanding gravel courses. Integrated cable routing, aerodynamic tube shaping, and race-inspired geometry ensure efficient power transfer and precise handling across varied terrain.
Designed with competitive gravel riding in mind, the G4-X takes inspiration from the renowned V4Rs road platform while expanding its capabilities for off-road performance. The frame accommodates tires up to 45mm wide, providing enhanced traction and comfort over loose surfaces without sacrificing speed. Additional bottle cage and accessory mounting points allow riders to carry extra hydration and gear for long days in the saddle, while maintaining a clean and purposeful race-focused design.
Compared to the C68 Gravel, the G4-X features a more compact and aggressive layout with lower seatstays and a shorter wheelbase. This configuration improves agility and responsiveness, making the bike ideal for riders who favor quick acceleration and confident handling during technical gravel racing. The result is a platform that balances speed, control, and efficiency in fast-moving off-road environments.
The G4-X is the product of carefully balancing the key elements that define a great gravel race bike: handling precision, low weight, descending stability, and frame responsiveness. True to Colnago’s heritage, the ride quality remains refined and engaging, delivering high-speed capability without sacrificing control or comfort. Whether lining up for competitive gravel events or tackling demanding backcountry routes, the G4-X offers a performance-driven platform built to excel across diverse terrain.
Key Features
- Tire Clearance - Fits tires up to 45mm for versatility across mixed terrain
- Cockpit Compatibility - Compatible with CC.01 Wide integrated cockpit, one-piece bar/stem, or traditional setups
- Bottom Bracket - T47 threaded bottom bracket for durability and easy maintenance
- Mounting Points - Four bottle/accessory mounts for hydration and gear on longer rides
| Specification | Detail |
|---|---|
| Series | G Series |
| Model | Colnago G4-X |
| Frame | Monocoque carbon |
| Fork | Carbon fork for disc brakes, external cables, section with round circumference |
| Headset Bearings | ACROS ss 42x52x7mm - 40x52x7mm |
| Seatpost | Carbon seatpost, 0.15 offset, "D-Shape" section |
| Through Axles | Diameter: 12 mm; Length: 100 mm (Front) / 142 mm (Rear) |
| Measurement | 45 | 48 | 52 | 54 | 57 |
|---|---|---|---|---|---|
| Fork Length (mm) | 406 | 406 | 406 | 406 | 406 |
| Seat Tube Angle (°) | 74 | 74 | 73.5 | 73 | 73 |
| Front Center (mm) | 585 | 596 | 613 | 628 | 644 |
| Chainstay Length (mm) | 430 | 430 | 430 | 430 | 430 |
| Head Tube Angle (°) | 71 | 71.5 | 71.5 | 71.5 | 71.5 |
| Bottom Bracket Drop (mm) | 72 | 72 | 70 | 70 | 70 |
| Stack (mm) | 535 | 554 | 573 | 591 | 610 |
| Reach (mm) | 371 | 380 | 390 | 400 | 410 |