Description

The perfect balance of the elements
A balanced gravel racing bike, to perform at its best in every context.
The G4-X is the result of optimizing all those factors that are important when you have to compete or go hard on dirt roads: handling, lightness, downhill rideability, stability, frame responsiveness, and, like all Colnago bikes, surprisingly wonderful to ride.

The perfect harmony of the elements, a balanced gravel bike. Colnago G4-X is a bike that demands to be pedaled fast, without sacrificing handling and riding pleasure.

G4-X Features
Tyres up to 45 mm (nominal)
The G4-X can fit tyres with a maximum nominal width of 45 mm.

Handlebars solutions
The Colnago G4-X is available with stem + handlebar 2-piece combination.

Additional bottle holder
For longer adventures it may be necessary to add bags and bottle cages. This is why the G4-X is equipped with four mounting points for bottle cages or small bags.

T47 Bottom bracket
The G4-X will be mounted with the standard T47 bottom bracket.

Seat post clamp
There is a new seatpost lock, designed to withstand more tightening torque and guarantee stability and safety during intense off-road riding.

A balanced gravel racing bike
The G4-X is the result of optimizing all those factors that are important when you have to compete or go hard on dirt roads: handling, lightness, downhill rideability, stability, frame responsiveness, and, like all Colnago bikes, surprisingly wonderful to ride.

Specifications
Details
Series: G Series
Model: Colnago G4-X
Frame kit
Frame (material): Monocoque carbon.
Fork (material, section notes): 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)
Drivetrain (GRX Not Pictured)
Shifting system: Shimano GRX 822 1x
Front derailleur: (This groupset has a single chainring)
Rear derailleur: Shimano GRX 1x: Shimano RD-RX822-SGS
Chain: Shimano GRX: Shimano CN-M8100 12V
Crankset: Shimano GRX 1x: 42T
Cassette: Shimano GRX 1x: 10-51 12v
Bottom bracket: ACROS T47
Crank length
Sizes 450 – 480: 170 mm
Sizes 520 – 570: 172.5 mm
Brakes
Brakes: Shimano RX-820, 160 mm Front / 160 mm Rear, RT-MT800-S rotors
Disc size: 160 mm Front/ 160 mm Rear
Brake lever: Shimano ST-RX820
Brake caliper: Shimano RX-820
Wheels
Wheels: Fulcrum Lite ER (for clincher and tubeless ready)
Material: Rims: aluminium, Spokes: stainless steel.
Rim height: Front: 24 mm; Rear: 24 mm
Internal channel width: 23 mm
Hubs: Aluminium, Sealed Cartridge Bearings
Through axles: Front: HH12-100 – Rear: HH12-142
Tyres: Pirelli Cinturato Gravel 40 TLR
Maximum tyre size: 42 mm (nominal width)
Components
Handlebar: Deda Gravel 100
Sizes 46s: Width: 400 mm
Sizes 49s – 55s: Width: 420 mm
Sizes 58s: Width: 440 mm
Stem: DEDA Gravel
Size 450 – 480: Length: 90 mm
Sizes 520- 570: Length: 100 mm
Handlebar Tape: Colnago Grip Black
Bottle cage: Colnago Matt Black (1x)
*Specifications provided by the manufacturer are subject to change based on component availability during assembly.