Colnago G4-X Shimano GRX 8204 MTYL Gravel Bike

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.

Please note that the specifications supplied by the manufacturer may be impacted by component stock availability at the factory assembly stage.

Specifications

• 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 (GRX not pictured)

• 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

• 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: Selle Italia Model X BB FEC
• Handlebar: Deda Gravel 100
  • Size 45: Width: 400 mm
  • Sizes 48 - 54: Width: 420 mm
  • Size 57: Width: 440 mm
• Stem: Deda ZERO1
  • Size 45: Length: 90 mm
  • Size 48: Length: 100 mm
  • Sizes 52 - 54: Length: 110 mm
  • Size 57: Length: 120 mm
• Handlebar Tape: Colnago Grip Black
• Bottle cage: Colnago Matt Black (1x)

This bike will be shipped un-built in the manufacturer supplied packaging. We strongly recommend that this bike be assembled by a qualified bike mechanic or bike shop.
Any assembly undertaken without professional assistance, and subsequent damage from faulty assembly, is at the customers risk.

An assembly service for any "Completed Bike" purchases made through our click and collect service can be arranged for an additional cost. Reach out to our customer service team for additional information.