Colnago G4-X Gravel Bike (Sram Rival XPLR) Vision SC 45 Size 450

Colnago G4-X Gravel Bike SRAM Rival XPLR AXS – Size 450

The Colnago G4-X is a performance-focused carbon gravel bike built for riders who demand speed, precision and confidence across mixed terrain. Combining Colnago’s Italian racing heritage with modern gravel geometry, the G4-X delivers responsive handling, stability and efficiency for gravel racing, fast adventures and long days off-road.

This size 450 Colnago G4-X features a SRAM Rival XPLR AXS 1x12 electronic drivetrain, delivering fast, precise wireless shifting with gravel-specific gearing. A 40T chainring and 10-44T cassette provide the range needed to tackle steep gravel climbs while maintaining speed across faster roads and rolling terrain.

The Vision SC 45 carbon wheelset combines low weight with aerodynamic efficiency, helping the G4-X accelerate quickly and carry speed. Pirelli Cinturato Gravel 40mm tubeless-ready tyres provide grip and control across loose surfaces and changing terrain.

At the heart of the bike is Colnago’s monocoque carbon G4-X frame, paired with a carbon gravel fork and D-Shape carbon seatpost. The result is a race-ready gravel bike that balances responsiveness with the stability needed for technical terrain and longer-distance riding.

For riders looking for a premium Italian carbon gravel bike with SRAM electronic shifting and carbon wheels, the Colnago G4-X Rival XPLR offers a fast and versatile package ready for racing and adventure.

Key Features

• Colnago G4-X monocoque carbon frame
• Colnago carbon gravel fork
• SRAM Rival XPLR AXS 1x12 electronic groupset
• SRAM Rival XPLR 40T chainring
• SRAM XPLR 10-44T cassette
• SRAM Rival hydraulic disc brakes
• Vision SC 45 carbon wheelset
• Pirelli Cinturato Gravel 40mm tubeless-ready tyres
• Colnago carbon D-Shape seatpost
• Size 450
• PIGR colour
• Designed for gravel racing, fast adventure riding and mixed terrain