Colnago
G4-X Shimano GRX 820 2x + Alloy Wheels
Gallery
Images
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Geometry
Geometry
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Geometry
Geometry
Frame geometry
| Geometry | 450 | 480 | 520 | 540 |
|---|---|---|---|---|
| Stack | 535mm | 554mm | 573mm | 591mm |
| Reach | 371mm | 380mm | 390mm | 400mm |
| Headtube length | — | — | — | — |
| Headtube angle | 71deg | 71.5deg | 71.5deg | 71.5deg |
| BB height | — | — | — | — |
| BB drop | 72mm | 72mm | 70mm | 70mm |
| Trail | — | — | — | — |
| Fork length | 406mm | 406mm | 406mm | 406mm |
| Fork offset | — | — | — | — |
| Front center | — | — | — | — |
| Chainstay length | 430mm | 430mm | 430mm | 430mm |
| Wheelbase | 585mm | 596mm | 613mm | 628mm |
| Top tube | 524mm | 539mm | 560mm | 581mm |
| Standover height | — | — | — | — |
| Seat tube length | — | — | — | — |
| Seat tube angle | 74deg | 74deg | 73.5deg | 73deg |
Spec geometry
| Geometry | 450 | 480 | 520 | 540 |
|---|---|---|---|---|
| Crank length | 170mm | 170mm | 172.5mm | 172.5mm |
| Stem length | 90mm | 90mm | 100mm | 100mm |
| Handlebar width | 400mm | 420mm | 420mm | 420mm |
| Handlebar reach | — | — | — | — |
| Handlebar drop | — | — | — | — |
| Saddle width | — | — | — | — |
| Dropper post travel | — | — | — | — |
| Seatpost offset | 15mm | 15mm | 15mm | 15mm |
Specs
Full specs
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Specs
Full specs
Frame
Frame
Colnago G4-X monocoque carbon frame
Suspension
Fork
Colnago carbon fork for disc brakes, external cables, round-section legs
Brakes
Front brake
SRAM RED eTap AXS HRD hydraulic disc
Rear brake
SRAM RED eTap AXS HRD hydraulic disc
Front rotor
SRAM CenterLine XR, 160mm
Rear rotor
SRAM CenterLine XR, 160mm
Drivetrain
Shift levers
SRAM RED 1x13 XPLR eTap AXS HRD shift-brake system
Rear derailleur
SRAM RED XPLR eTap AXS (RD-RED-1E-E1)
Cassette
SRAM RED XPLR 13-speed, 10-46T
Chain
SRAM RED Chain (CN-RED-E1)
Crankset
SRAM RED XPLR 1x (40T) on SRAM DUB Road; crank length: 170mm (sizes 450–480) / 172.5mm (sizes 520–570)
Bottom bracket
T47 SRAM DUB Road
Cockpit
Stem
Colnago CC.01 Wide integrated cockpit; stem length: 90mm (sizes 450–480) / 100mm (sizes 520–570)
Handlebars
Colnago CC.01 Wide integrated cockpit; bar width: 400mm (size 450) / 420mm (sizes 480–540) / 440mm (size 570)
Saddle
Selle Italia Novus Boost EVO Superflow FeC (Model X BB FEC also listed)
Seatpost
Colnago carbon seatpost, 0.15 offset, D-shape section
Wheels & Tires
Front wheel
Vision SC 45 Disc carbon wheel
Rear wheel
Vision SC 45 Disc carbon wheel
Front tire
Pirelli Cinturato Gravel 40 TLR
Rear tire
Pirelli Cinturato Gravel 40 TLR