€ 4.504,00
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.
Series
V 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
Shifting system
Shimano GRX 820 2x
Front derailleur
Shimano GRX 2x: Shimano FD-RX820
Rear derailleur
Shimano GRX 2x: Shimano RD-RX820
Chain
Shimano GRX: Shimano CN-M8100 12V
Crankset
Shimano GRX 2x: 48-31T
Cassette
Shimano GRX 2x: 11-36 12v
Bottom bracket
Shimano SM-BB72-41B Press Fit Movement 86.5×41
Crank length
Sizes 450 – 480
170 mm
Sizes 520 – 540
172.5 mm
Sizes 570
175 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 Rapid Red 900 DB | 2-Way Fit Ready (for tyre and tubeless ready)
Material
Rims: aluminium, Spokes: stainless steel.
Rim height
Front: 24 mm; Rear: 24 mm
Internal channel width
22 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
Saddle
“Prologo” Kappa BK
“Selle Italia” Model X BB FEC
Handlebar
Deda Gravel 100
Sizes 46s
Width: 400 mm
Sizes 49s – 55s
Width: 420 mm
Sizes 58s
Width: 440 mm
Stem
Deda ZERO1
Size 46s
Length: 90 mm
Size 49s
Length: 100 mm
Sizes 52s – 55s
Length: 110 mm
Sizes 58s
Length: 120 mm
Handlebar Tape
Colnago Grip Black
Bottle cage
Colnago Matt Black (1x)
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.
Series
V 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
Shifting system
Shimano GRX 820 2x
Front derailleur
Shimano GRX 2x: Shimano FD-RX820
Rear derailleur
Shimano GRX 2x: Shimano RD-RX820
Chain
Shimano GRX: Shimano CN-M8100 12V
Crankset
Shimano GRX 2x: 48-31T
Cassette
Shimano GRX 2x: 11-36 12v
Bottom bracket
Shimano SM-BB72-41B Press Fit Movement 86.5×41
Crank length
Sizes 450 – 480
170 mm
Sizes 520 – 540
172.5 mm
Sizes 570
175 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 Rapid Red 900 DB | 2-Way Fit Ready (for tyre and tubeless ready)
Material
Rims: aluminium, Spokes: stainless steel.
Rim height
Front: 24 mm; Rear: 24 mm
Internal channel width
22 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
Saddle
“Prologo” Kappa BK
“Selle Italia” Model X BB FEC
Handlebar
Deda Gravel 100
Sizes 46s
Width: 400 mm
Sizes 49s – 55s
Width: 420 mm
Sizes 58s
Width: 440 mm
Stem
Deda ZERO1
Size 46s
Length: 90 mm
Size 49s
Length: 100 mm
Sizes 52s – 55s
Length: 110 mm
Sizes 58s
Length: 120 mm
Handlebar Tape
Colnago Grip Black
Bottle cage
Colnago Matt Black (1x)
