Colnago G4-X Shimano GRX 2X MTYL Gravel Bike

A balanced gravel racing bike, to perform at its best in every context.

The G4-X is the result of optimising 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.

Specifications

• Series: V Series
• Model: Colnago G4-X

Frame kit

• Frame (material): Monocoque carbon
• Fork (material, notes section): Carbon fork for disc brakes, external cables, section with round circumference
• Headset: ACROS ss 42x52x7mm - 40x52x7mm
• Seatpost: Carbon, 0.15 offset, ‘D-Shape’ section
• Through-bolt: 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 - 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

• Rims: Fulcrum Rapid Red 900 500/ 900/ Lite ER based on the supplier's availability
• Material: Rims: Aluminium, Spokes: Stainless steel
• Rim height: Front: 24 mm; Rear: 24 mm
• Inner rim width: 22 mm
• Hubs: Aluminium, sealed cartridge bearings
• Through-bolt: Front: HH12-100 - Rear: HH12-142
• Tyres: Pirelli Cinturato Gravel 40 TLR
• Max. tyre size: 42 mm (nominal width)

Components

• Saddle: NOVUS BOOST EVO Superflow FeC "Selle Italia" Model X BB FEC
• Handlebar: Deda Gravel 100
  
  • Size 46s: Width: 400 mm
  • Sizes 49s - 55s: Width: 420 mm
  • Size 58s: Width: 440 mm
• Handlebar stem: Deda ZERO1
  
  • Size 46s: Length: 90 mm
  • Size 49s: Length: 100 mm
  • Size 52s - 55s: Length: 110 mm
  • Size 58s: Length: 120 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.

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.