G4-X Frameset
Frameset Purchase: This is a frameset purchase, not a complete bike. Included components are the frame, fork, headset, seatpost, and finishing kit. Drivetrain, wheels, brakes, cockpit, and all other components are sold separately. Product photos show a complete build for illustrative purposes.
The Colnago G4-X is a purpose-built gravel race frameset that balances the competing demands of competitive off-road riding: handling precision, frame stiffness, downhill stability, and the lightness to climb without compromise. This is the frameset for riders who know how they want to ride and want to build around a frame that earns its place on a gravel start line.
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Product images may vary slightly from final specifications.
Need to Know
KEY FEATURES
PERFECT FOR
Why we like the Colnago G4-X Frameset
Build It Your Way
The G4-X is compatible with a wide range of modern gravel groupsets and wheel standards, giving you the freedom to build exactly the bike you want. Whether you're pairing it with a flagship electronic groupset and carbon race wheels or speccing it with a reliable mechanical drivetrain and durable alloy wheels, the frame supports your vision without compromise.
45mm Clearance, No Excuses
Genuine 45mm tire clearance means the G4-X can run the volume of rubber that modern gravel racing demands. Whether you're on a course that transitions from fast gravel to technical singletrack, or building a frame that doubles as an adventure bike, the clearance is there to support it.
Four Mounting Points is Quietly Significant
Most gravel frames offer two cage mounts. The G4-X has four, giving you the flexibility to run two cages, add a frame bag, or set up for multi-day riding without compromise. For riders who cover remote terrain or enter events with long unsupported sections, that extra mount has real practical value.
Specifications
Frame Material
Monocoque Carbon
Bottom Bracket
T47 threaded shell
Tire Clearance
45mm
Cockpit
Headset
ACROS SS, 42x52x7mm / 40x52x7mm
Handlebar
CC.01 Wide integrated cockpit
Stem
Integrated cockpit
Seatpost
Carbon, 0.15 offset, D-Shape section
Size Guide
Geometry
| 45cm | 48cm | 52cm | 54cm | 57cm |
|---|
All measurements in degrees or mm
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