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
Sram Rival AXS Disc
Front derailleur
(This groupset has a single chainring)
Rear derailleur
Sram Rival: RD-RIV-E-D1
Chain
Sram Rival: Sram CN-RIV-D1
Crankset
Sram Rival: 40T
Cassette
Sram Rival: 10-44 12v
Bottom bracket
T47 Sram DUB Road
Crank length
Sizes 450 - 480
170 mm
Sizes 520 - 540
172.5 mm
Sizes 570
175 mm
Brakes
Brakes
SRAM Rival hydraulic disc, 160 Front / 160 Rear, SRAM Paceline rotors
Disc size
160 mm Front/ 160 mm Rear
Brake lever
Rival eTap AXS HRD Shift-Brake System - ED-RIV-D1
Brake caliper
Rival eTap AXS HRD Shift-Brake System - ED-RIV-D1
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: 24.1 mm; Rear: 24.1 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 Gravel
Size 450 - 480
Length: 90 mm
Sizes 520- 570
Length: 100 mm
Handlebar Tape
Colnago Grip Black
Bottle cage
Colnago Matt Black (1x)
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