Bicycle Archive · Specification reportBicycle Archive · Specification reportVelopedia Archive ID 900000280
| Model year | 2026 |
|---|---|
| Brand | Colnago |
| Model | G4-X Shimano GRX 820 2x |
| Bicycle type | Cyclocross/Gravel |
| Archive ID | 900000280 |
| Original MSRP | $5,100.00 |
| Colors | MTYL; PIGR; ICBL |
| Sizes | 450; 480; 520; 540; 570 |
| Frame construction | Monocoque carbon. |
|---|---|
| Frame material | Carbon fiber |
| Fork | Carbon fork for disc brakes, external cables, section with round circumference |
| Fork material | Carbon fiber |
| Component group | Shimano GRX 820 2x |
|---|---|
| Shifters | Shimano ST-RX820 |
| Front derailleur | Shimano GRX 2x: Shimano FD-RX820 |
| Rear derailleur | Shimano GRX 2x: Shimano RD-RX820 |
| Crankset | Shimano GRX 2x: 48-31T |
| Bottom bracket | Acros T47 |
| Cassette | Shimano GRX 2x: 11-36 12v |
| Chain | Shimano GRX: Shimano CN-M8100 12V |
| Brakes | Shimano RX-820, 160 mm Front / 160 mm Rear, RT-MT800-S rotors |
|---|
| Handlebar | Deda Gravel 100Sizes 46sWidth: 400 mmSizes 49s - 55sWidth: 420 mmSizes 58sWidth: 440 mm |
|---|---|
| Stem | Deda ZERO1Size 46sLength: 90 mmSize 49sLength: 100 mmSizes 52s - 55sLength: 110 mmSizes 58sLength: 120 mm |
| Saddle | NOVUS BOOST EVO Superflow FeC"Selle Italia" Model X BB FEC |
| Seatpost | Carbon seatpost, 0.15 offset, "D-Shape" section |
| Hubs | Aluminium, Sealed Cartridge Bearings |
|---|---|
| Wheels | Fulcrum Lite ER (for clincher and tubeless ready) |
| Rims | Material: Rims: aluminium, Spokes: stainless steel.; Rim Height: Front: 24 mm; Rear: 24 mm; Internal Channel Width: 23 mm |
| Front tire | Pirelli Cinturato Gravel 40 TLR |
| Rear tire | Pirelli Cinturato Gravel 40 TLR |
| Effective top tube | 524 mm |
|---|---|
| Head-tube angle | 71° |
| Seat-tube angle | 74° |
| Chainstay / rear center | 430 mm |
| Bottom-bracket drop | 72 mm |
| Reach | 371 mm |
| Stack | 535 mm |
| Front center | 585 mm |
| Fork length / axle-to-crown | 406 mm |
| Crank length | 170 mm |
| Stem length | 90 mm |
| Handlebar width | 400 mm |
| Effective top tube | 539 mm |
|---|---|
| Head-tube angle | 71.5° |
| Seat-tube angle | 74° |
| Chainstay / rear center | 430 mm |
| Bottom-bracket drop | 72 mm |
| Reach | 380 mm |
| Stack | 554 mm |
| Front center | 596 mm |
| Fork length / axle-to-crown | 406 mm |
| Stem length | 90 mm |
| Handlebar width | 400 mm |
| Effective top tube | 560 mm |
|---|---|
| Head-tube angle | 71.5° |
| Seat-tube angle | 73.5° |
| Chainstay / rear center | 430 mm |
| Bottom-bracket drop | 70 mm |
| Reach | 390 mm |
| Stack | 573 mm |
| Front center | 613 mm |
| Fork length / axle-to-crown | 406 mm |
| Stem length | 100 mm |
| Handlebar width | 420 mm |
| Effective top tube | 581 mm |
|---|---|
| Head-tube angle | 71.5° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 430 mm |
| Bottom-bracket drop | 70 mm |
| Reach | 400 mm |
| Stack | 591 mm |
| Front center | 628 mm |
| Fork length / axle-to-crown | 406 mm |
| Stem length | 110 mm |
| Handlebar width | 420 mm |
| Effective top tube | 596 mm |
|---|---|
| Head-tube angle | 71.5° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 430 mm |
| Bottom-bracket drop | 70 mm |
| Reach | 410 mm |
| Stack | 600 mm |
| Front center | 644 mm |
| Fork length / axle-to-crown | 406 mm |
| Stem length | 110 mm |
| Handlebar width | 420 mm |
Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on August 25, 2026.