2026
G4-X Shimano
The 2026 Colnago G4-X Shimano has a middle-of-the-range frame position for gravel bikes. This page lists 5 geometry entries, with reach from 371 to 410 mm and stack from 535 to 600 mm. The G4-X Shimano GRX Di2 825 2x build comes with Fulcrum Lite ER wheels.
Geometry comparisons use 686 other gravel bikes with usable geometry in Quiver. They describe frame geometry, not your hand position or tested ride feel.
Keep a record of your G4-X in Quiver. Start with the catalog details available for this bike, then keep track of the parts you change.
Published geometry is from manufacturer data. Source: colnago.com. Last checked .
Key facts
- Brand
- Colnago
- Model
- G4-X
- Model year
- 2026
- Frame
- Shimano
- Type
- Gravel
- Geometry labels
- 450, 480, 520, 540, and 570
- Wheels
- Fulcrum Lite ER
- Geometry
- Complete for every size
- Manufacturer source
- colnago.com
- Last checked
Geometry by size
| Measurement | 450 | 480 | 520 | 540 | 570 |
|---|---|---|---|---|---|
| Reach(mm) | 371 | 380 | 390 | 400 | 410 |
| Stack(mm) | 535 | 554 | 573 | 591 | 600 |
| Head tube angle(°) | 71 | 71.5 | 71.5 | 71.5 | 71.5 |
| Seat tube angle(°) | 74 | 74 | 73.5 | 73 | 73 |
| Effective top tube(mm) | 524 | 539 | 560 | 581 | 596 |
| Chainstay length(mm) | 430 | 430 | 430 | 430 | 430 |
| BB drop(mm) | 72 | 72 | 70 | 70 | 70 |
| Fork length(mm) | 406 | 406 | 406 | 406 | 406 |
Own a G4-X? Keep track of it in Quiver.
Start with the catalog details available for this bike, then keep track of the parts you change.
Free on the App StoreFree on Google Play Free to download. If you already have Quiver, the button opens it.Stock build
12 parts
Frame
Suspension
Sources for specifications
Sources: OEM build page: colnago G4-X 2026 — colnago.comDrivetrain
Sources for specifications
Sources: OEM build page: colnago G4-X 2026 — colnago.comSources for specifications
Sources: cyclist.co.ukSources for specifications
Sources: OEM build page: colnago G4-X 2026 — colnago.comWheels & Tires
Sources for specifications
Sources: OEM build page: colnago G4-X 2024 — colnago.comBrakes
Sources for specifications
Sources: OEM build page: colnago G4-X 2026 — colnago.com, OEM build page: cannondale Super X 2026 — cannondale.comCockpit
Seatpost & Saddle
Sources for specifications
Sources: OEM build page: colnago G4-X 2026 — colnago.comMFrom the manufacturer
Quick answers
- Which size or configuration labels have geometry for the 2026 Colnago G4-X Shimano?
- This page lists geometry under 5 labels: 450, 480, 520, 540, and 570.
- What are the reach and stack of the 2026 Colnago G4-X Shimano in size 520?
- In size 520, reach is 390 mm and stack is 573 mm.
- What is the head tube angle of the 2026 Colnago G4-X Shimano?
- The head tube angle is 71.5 degrees in size 520.
- What does the 2026 Colnago G4-X Shimano GRX Di2 825 2x ship with?
- The stock build includes Colnago G4-X, Colnago G4-X Carbon, Shimano GRX, and Fulcrum Lite ER.
- Which years of the Colnago G4-X are on Quiver?
- Quiver has the Colnago G4-X for 2026 and 2024.
Own a G4-X? Keep track of it in Quiver.
Start with the catalog details available for this bike, then keep track of the parts you change.
Free on the App StoreFree on Google Play Free to download. If you already have Quiver, the button opens it.