Colnago G4-X Shimano GRX 1X ICBL Gravel Bike

The perfect balance of the elements

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.

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.

G4-X Features

Tyres up to 45 mm (nominal)
The G4-X can fit tyres with a maximum nominal width of 45 mm.

Handlebars solutions
The Colnago G4-X is available with either the stem + handlebar 2-piece combination or with the integrated CC.01 Wide cockpit.

Additional bottle holder
For longer adventures it may be necessary to add bags and bottle cages. This is why the G4-X is equipped with four mounting points for bottle cages or small bags.

T47 Bottom bracket
The G4-X will be mounted with the standard T47 bottom bracket.

Seat post clamp
There is a new seatpost lock, designed to withstand more tightening torque and guarantee stability and safety during intense off-road riding.

A balanced gravel racing bike
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.

Specifications

• Details
  • Series: G 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 822 1x
  • Front derailleur: (This groupset has a single chainring)
  • Rear derailleur: Shimano GRX 1x: Shimano RD-RX822-SGS
  • Chain: Shimano GRX: Shimano CN-M8100 12V
  • Crankset: Shimano GRX 1x: 42T
  • Cassette: Shimano GRX 1x: 10-51 12v
  • Bottom bracket: ACROS T47
  • 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
  • Wheels: Fulcrum Lite ER (for clincher and tubeless ready)
  • Material: Rims: aluminium, Spokes: stainless steel.
  • Rim height: Front: 24 mm; Rear: 24 mm
  • Internal channel width: 23 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
  • 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)

*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.