Colnago G4-X Shimano GRX 820 2x + Fulcrum Rapid Red 900
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.
Note: photos are for illustrative purposes, anything not specified in the description is NOT included. Specifications may vary without notification.
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.
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.
Technical specifications
Shimano GRX 820 2x
- Series: V Series
- Model: Colnago G4-X
- 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)
- Rear derailleur: Shimano GRX 820 2x
- Front Derailleur: Shimano GRX 2x: Shimano FD-RX820
- Front Derailleur: Shimano GRX 2x: Shimano RD-RX820
- Chain: Shimano GRX: Shimano CN-M8100 12V
- Crankset: Shimano GRX 2x: 48-31T
- Sprocket set: 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
- Rims: 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
- 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)
- Saddle: ‘Prologo’ Kappa BK, ‘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)