Product Details
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.
Sample components shown in image. See below for full specifications.
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 CN-M8100
- Front derailleur: -
- Rear derailleur: SHIMANO RX-822
- Chain: SHIMANO CN-M8100
- Crankset: SHIMANO FC-RX820 42T
- Cassette: SHIMANO CS-M810 10-51T
- Bottom bracket: T47 ACROS
-
Crank length
- Sizes 450 - 480: 170 mm
- Sizes 520 - 570: 172.5 mm
Brakes
- Brakes: SHIMANO BR-RX820
- Disc size: SHIMANO RT-CL800 Ø 160MM
- Brake lever: SHIMANO BL-RX820
- Brake caliper: SHIMANO BR-RX820
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: S.ITALIA NOVUS BOOST EVO Superflow FeC
-
Handlebar: DEDA SUPERZERO GRAVEL ALLOY
- Size 45 - 48: Width: 420 mm
- Size 51 - 57: Width: 440 mm
-
Stem: COLNAGO RS10 ALLOY
- Size 45 - 48: Length: 90 mm
- Size 51: Length: 100 mm
- Sizes 54 - 57: Length: 110 mm
- Handlebar Tape: Colnago Grip Black
- Bottle cage: Colnago Matt Black (1x)
What Sets Alchemy Apart
The best pre-owned bikes
When you buy a pre-owned bike from Alchemy Cycle Trader, you’re getting more than just a great deal. Every bike is roadworthy certified, comes with a 3-month warranty, and includes your first service free - so you can ride away with complete confidence.
Buy with confidence
In-house Active Thermography Carbon Fibre Testing for extra peace of mind on pre-owned bikes.
Learn more about our carbon testing.
Expert Servicing & Ongoing Support
Our professional workshop team is here to keep your bike running at its best long after you’ve taken it home. From routine servicing to performance tuning, our qualified mechanics ensure your ride stays smooth, safe, and ready for every adventure. Whether it’s your first free service or future maintenance, you can count on Alchemy Cycle Trader for trusted support and expert care. Learn more about our workshop services.
