Good to know: Integrated cockpit · Configurable build
Integrated cockpit (a one-piece bar and stem) on at least one build. Changing the length means replacing the whole cockpit, and not every length exists. Check which length the bike actually ships with before you buy.
Configurable build (at least partly: the cockpit or bar width, for example). The stock build below is only one of the options.
Geometry ?
Colnago G4-X 2026 geometry in sizes 450–570: stack 535–600 mm, reach 371–410 mm, head angle 71–71.5°.
| 450 | 480 | 520 | 540 | 570 | |
|---|---|---|---|---|---|
| Stack | 535 mm | 554 mm | 573 mm | 591 mm | 600 mm |
| Reach | 371 mm | 380 mm | 390 mm | 400 mm | 410 mm |
| Head angle | 71° | 71.5° | 71.5° | 71.5° | 71.5° |
| Seat angle | 74° | 74° | 73.5° | 73° | 73° |
| Seat tube (c-t) | 450 mm | 480 mm | 520 mm | 540 mm | 570 mm |
| BB drop | 72 mm | 72 mm | 70 mm | 70 mm | 70 mm |
| Chainstay | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm |
| Fork length | 406 mm | 406 mm | 406 mm | 406 mm | 406 mm |
| Stock build by size | |||||
| Cranks | 170 mm | 170 mm | 172.5 mm | 172.5 mm | 172.5 mm |
| Stem | 90 mm | 90 mm | 100 mm | 100 mm | 100 mm |
| Bar width G4-X SRAM Red XPLR 1x13 | 400 mm | 420 mm | 420 mm | 420 mm | 440 mm |
| Bar width G4-X Shimano GRX 822 1x | 400 mm | 400 mm | 420 mm | 420 mm | 420 mm |
| Seatpost setback | 15 mm | 15 mm | 15 mm | 15 mm | 15 mm |
Source: colnago.com, checked 1 Nov 2026 · bar position: worked out from published data
An older model year in the archive with the same stack, reach and head angle: 2025. Source: web.archive.org
Stock build
G4-X SRAM Red XPLR 1x13 €8,870
- Groupset
- SRAM Red XPLR AXS 1×13
- Shifters
- SRAM Red eTap AXS HRD shift-brake
- Cranks
- SRAM Red XPLR
- Stem
- Colnago CC.01 Wide integrated cockpit
- Handlebar
- Colnago CC.01 Wide integrated cockpit
- Seatpost
- Carbon seatpost, 0.15 offset, "D-Shape" section
- Saddle
- Selle Italia Novus Boost Evo Superflow FeC / Selle Italia Model, BB FeC
- List price
- €8,870 (colnago.com, 1 Nov 2026)
G4-X Shimano GRX Di2 825 2x €6,400
- Groupset
- Shimano GRX 825 Di2 2×12
- Shifters
- Shimano ST-RX820
- Cranks
- Shimano GRX 48-31T
- Stem
- Colnago CC.01 Wide integrated cockpit
- Handlebar
- Colnago CC.01 Wide integrated cockpit
- Seatpost
- Carbon seatpost, 0.15 offset, "D-Shape" section
- Saddle
- Selle Italia Novus Boost Evo Superflow FeC / Selle Italia Model, BB FeC
- List price
- €6,400 (colnago.com, 1 Nov 2026)
G4-X Shimano GRX 822 1x €4,330
- Groupset
- Shimano GRX 822 1×12
- Shifters
- Shimano ST-RX820
- Cranks
- Shimano GRX 42T
- Stem
- DEDA Gravel
- Handlebar
- Deda Gravel 100
- Seatpost
- Carbon seatpost, 0.15 offset, "D-Shape" section
- Saddle
- Selle Italia Novus Boost Evo Superflow FeC / Selle Italia Model, BB FeC
- List price
- €4,330 (colnago.com, 1 Nov 2026)
Source for all builds: colnago.com, checked 1 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size 450 (stack 535 / reach 371 mm).
Stack and reach within 12 mm of size 480 (stack 554 / reach 380 mm).
Stack and reach within 12 mm of size 520 (stack 573 / reach 390 mm).
Stack and reach within 12 mm of size 540 (stack 591 / reach 400 mm).
Stack and reach within 12 mm of size 570 (stack 600 / reach 410 mm).
Spotted a mistake or a missing build? Let me know.
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