Colnago G3-X Shimano GRX 820 2×12 Gravel Bike

From Cyclocross to Gravel; Fast on Any Terrain.

nThe Colnago racing soul triumphs on dirt roads with the Colnago G3-X Shimano GRX 820 2×12, the gravel bike for tackling any type of terrain in any season, designed for riding on dirt and muddy terrain, comfortable even over long distances. The G3-X is made with a carbon monocoque frame and fitted with disc brakes. Plus the chain stays are wide enough to fit tires up to a maximum of 42 millimeters.
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nThe G3-X is equipped with two protective plastic mudguards: one under the bottom bracket and one above the right chainstay to protect the chain from blows. And since longer adventures may require additional bags and bottle cages, the G3-X is equipped with two extra rivet pairs on the top tube and under the down tube.
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nNote: Colnago uses actual seatube length for their size measurement. Please use the geometry chart to determine the correct size. If you have any questions please feel free to contact us and our Customer Service team will be happy to help you determine your proper size.
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Features:

nFrame kit
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  • Frame (material): Monocoque carbon.

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  • Fork (material, section notes): Carbon fork for disc brakes, external cables, section with round circumference.

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  • Headset: ID30,1 OD41 36°/45° ID40 OD52 45°/45°.

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  • Seatpost: Carbon seatpost, 0.15 offset, “D-Shape” section.

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  • Through axles: Diameter: 12 mm. length 100 mm (front) – 142 mm (rear).

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nDrivetrain
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  • Shifting system: Shimano GRX 820 2x.

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  • Front derailleur: Shimano GRX 2x: Shimano FD-RX820.

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  • Rear derailleur: Shimano GRX 2x: Shimano RD-RX820.

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  • Chain: Shimano GRX: Shimano CN-M8100 12V.

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  • Crankset: Shimano GRX 2x: 48-31T.

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  • Cassette: Shimano GRX 2x: 11-36 12v.

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  • Bottom bracket: Shimano SM-BB72-41B Press Fit Movement 86.5×41.

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  • Crank length: Sizes 42s – 48s: 170 mm, Sizes 50s – 54s: 172.5 mm, Sizes 56s – 58s: 175 mm

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nBrakes
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  • Brakes: Shimano RX-820, 160 mm Front / 160 mm Rear, RT-MT800-S rotors.

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  • Disc size: 160 mm Front/ 160 mm Rear.

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  • Brake lever: Shimano ST-RX820.

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  • Brake caliper: Shimano RX-820.

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nWheels
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  • Wheels: Shimano WH-RS370

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  • Material: Rims: aluminum, Spokes: stainless steel.

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  • Rim height: Front: 19 mm; Rear: 19 mm.

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  • Internal channel width: 19 mm.

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  • Hubs: Aluminum, Sealed Cartridge Bearings.

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  • Through axles: Front: HH12-100 – Rear: HH12-142.

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  • Tires: Pirelli Cinturato Gravel H 40 TLR.

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  • Maximum tire size: 42 mm (nominal width).

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nComponents
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• Saddle: Prologo Kappa BK, Selle Italia” Model X BB FEC

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• Handlebar: Deda Gravel 100; Sizes 46s: Width: 400 mm, Sizes 49s – 55s: Width: 420 mm, Sizes 58s: Width: 440 mm

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• Stem: Deda ZERO1; Size 46s: Length: 90 mm, Size 49s: Length: 100 mm, Sizes 52s – 55s: Length: 110 mm, Sizes 58s: Length: 120 mm

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• Handlebar Tape: Colnago Grip Black

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• Bottle cage: Colnago Matte Black (1x)

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