Colnago G4-x Shimano Grx 827 Di2 + Vision Sc45

Please note: The bikes are assembled according to the manufacturer's specifications with default features according to size. For any assembly requests or specifications other than the basic ones, please contact our costumer service directly before purchase.

A well-balanced gravel road bike, to give its best on any terrain

The G4-X is the result of optimising all those factors that are important when you have to race or go hard on gravel roads: handling, lightness, downhill handling, stability, frame responsiveness and, like all Colnago bikes, surprisingly wonderful to ride. The G4-X can fit tyres up to 45mm wide. For longer adventures it may be necessary to add panniers and bottle cages. This is why the G4-X has four mounting points for bottle cages or small bags. There is a new seatpost clamp, designed to withstand increased torque and ensure a secure fit during intense off-road rides. The perfect harmony of elements, a balanced gravel bike. The Colnago G4-X is a bike that demands to be pedalled fast, but without sacrificing handling and riding pleasure.

Tech spec

Frame

• Material: Carbon monocoque.
• Fork: Carbon fork for disc brakes, external cables, round circumference section.
• Headset: ACROS ss 42x52x7 mm - 40x52x7 mm.
• Seat post: Carbon, 0.15 offset, D-Shape section
• Thru axles: Diameter: 12 mm. Length 100 mm (front) - 142 mm (rear)

Drivetrain

• Gear system: Shimano GRX 827 1x Di2
• Front derailleur: Shimano GRX 2x: Shimano FD-RX827
• Rear derailleur: Shimano GRX 2x: Shimano RD-RX827
• Chain: Shimano GRX: Shimano CN-M8100 12V
• Crankset: Shimano GRX 1x: 48-31T
• Cassette: Shimano GRX 1x: 11-36 12v
• Bottom bracket: Shimano SM-BB72-41B Press Fit Movement 86.5x41
• Crankset length: Sizes 450 - 480 170 mm; Sizes 520 - 540 172.5 mm; Sizes 570 175 mm

Brakes

• Brakes: Shimano RX-827, 160 mm Front / 160 mm Rear, RT-MT800-S rotors
• Disc size: 160 mm Front/ 160 mm Rear
• Brake lever: Shimano ST-RX827
• Brake caliper: Shimano RX-827

Wheels

• Rims: Vision SC 45 Disc
• Material: Carbon - with hooks
• Rim height: 45 mm
• Internal channel width: 21 mm
• Hubs: Aluminium, sealed cartridge bearings
• Thru axles: Front: HH12-100 - Rear: HH12-142
• Tyres: Pirelli Cinturato Gravel 40 TLR
• Maximum tyre size: 42 mm

Components

• Saddle: NOVUS BOOST EVO Superflow FeC / ‘Selle Italia’ Model X BB FEC
• Handlebar: CC.01 Wide integrated Width: 400, 420, 440 mm
• Stem: Integrated (CC.01 Wide) Length: 90, 100 mm
• Handlebar tape: Colnago Grip Black
• Bottle cage: Colnago Matt Black (1x)

Producer's notes: depending on component availability, specifications are subject to change without notice. Images are for illustrative purposes only.