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, wonderful to ride. Read more.
Fork (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)
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 86.5x41
Crank length
- Sizes 450 - 480 - 170 mm
- Sizes 520 - 540 - 172.5 mm
- Sizes 570 -175 mm
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 - 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)
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)
