Colnago G4-X Shimano GRX Fulcrum Rapid Red 900 DB Green Gravel Bike

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Colnago G4-X: a high-end gravel bike

The Colnago G4-X is a gravel bike designed for all cyclists seeking performance, reliability, and style. Born from Italian craftsmanship, this model stands out with its carbon frame , built for speed and precision on all terrains. Its gravel-specific geometry offers stable and responsive handling, ideal for racking up the miles on trails, tracks, or back roads. The glossy green finish adds a touch of unique character, blending elegance and boldness.

A Shimano GRX electronic drivetrain : smooth and controlled off-road riding

Equipped with the Shimano GRX groupset in a single-chainring configuration, this bike ensures precise, fast, and effortless gear changes, even on the most demanding terrain. The gravel-specific drivetrain guarantees smooth pedaling in all conditions, with ergonomics designed for comfort and control on uneven surfaces. The single-chainring configuration reduces bulk and simplifies operation while maintaining a wide gear range to tackle the steepest climbs.

Fulcrum Rapid Red 900 DB wheels: robustness and versatility for adventure

The Fulcrum Rapid Red 900 DB wheels complete the package with their proven strength and tubeless Ready compatibility. Perfectly suited to gravel riding, they offer excellent efficiency, good vibration absorption, and unwavering reliability, mile after mile. Paired with high-volume tires, they enhance comfort and traction on mixed terrain. In this configuration, the Colnago G4-X becomes a true adventure companion, capable of pushing the limits both on and off-road.

Technical specifications:

• Series: V
• Model: G4-X
• Color: PIGR
• Frame : Monocoque carbon
• Fork : carbon for rotor brakes, external cables, round circumference section
• Seatpost : carbon, 0.15 offset, "D-Shape" section
• Thru-axles: diameter: 12 mm. length: 100 mm (front) - 142 mm (rear)
• Drivetrain : Shimano GRX 822 1x
• Rear derailleur : Shimano GRX 1x RD-RX822-SGS
• Chain : Shimano CN-M8100 12s
• Chainrings: Shimano GRX 1x : 42 teeth
• Sprocket Cassette : Shimano GRX 1x : 10-51 12s
• Bottom bracket : Shimano T47-86mm
• Brakes: Shimano RX-820, 160 mm front / 160 mm rear,
• Disc brakes: Shimano RT-MT800-S
• Brake lever: Shimano ST-RX820
• Brake caliper : Shimano RX-820
• Wheels: Fulcrum Rapid Red 900 DB
• rim height: Front: 24 mm; Rear: 24 mm
• Tires: Pirelli Cinturato Gravel bike 40 TLR
• Saddle : Saddle Italia model X BB FEC
• Handlebar : Deda Gravel bike 100
• Stem : Deda ZERO1
• Ruban de handlebar : Colnago Black
• Bottle cage: Colnago Matte Black (x1)

Discover all our gravel bikes .