2022 Specialized Crux FACT 12r Carbon vs 2024 Colnago G4-X Shimano
The 540 is the Colnago G4-X Shimano size closest to your 58 Specialized Crux FACT 12r Carbon. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Colnago G4-X Shimano
Compared with the Specialized Crux FACT 12r Carbon in 58, the Colnago G4-X Shimano in 540 places the top of the head tube 7 mm lower and 5 mm further back, relative to the bottom bracket.
- Frame stack
- −7 mm
- Lower front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Specialized Crux FACT 12r Carbon is drawn. The Colnago G4-X Shimano numbers we have for size 540 are missing the wheelbase.
Geometry side by side
| Measurement | Specialized Crux FACT 12r Carbon 58 | Colnago G4-X Shimano 540 | Difference |
|---|---|---|---|
| Reach | 405mm | 400 | −5 mm |
| Stack | 598mm | 591 | −7 mm |
| Head tube angle | 72.25° | 71.5 | −0.8° |
| Seat tube angle | 73.5° | 73 | −0.5° |
| Chainstay length | 425mm | 430 | +5 mm |
| Wheelbase | 1045mm | not listed | |
| BB drop | 72mm | 70 | −2 mm |
| BB height | 286mm | not listed | |
| Standover | 841mm | not listed | |
| Seat tube length | 576mm | 540 | −36 mm |
| Fork length | 401mm | 406 | +5 mm |
| Head tube length | 167mm | not listed | |
| Effective top tube | not listed | 581 |
Differences are the Colnago G4-X Shimano minus the Specialized Crux FACT 12r Carbon. Full charts: 2022 Specialized Crux FACT 12r Carbon, 2024 Colnago G4-X Shimano.
Where each sits in its class
Specialized Crux FACT 12r CarbonColnago G4-X Shimano
Each bike is ranked against the other gravel bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Crux FACT 12r CarbonS-Works FACT 12r Carbon | Colnago G4-X ShimanoShimano GRX 822 1x |
|---|---|---|
| Frame | Specialized S-Works Crux FACT | Colnago G4-X |
| Seatpost | Roval Alpinist | Colnago D-shape |
| Shifter | not listed | Shimano GRX RX822 |
| Derailleur | not listed | Shimano GRX RX822 |
| Cassette | not listed | Shimano GRX |
| Crankset | not listed | Shimano GRX |
| Chainring | not listed | Shimano GRX |
| Bottom bracket | not listed | Acros T47 |
| Wheelset | not listed | Fulcrum Lite ER |
| Tire | not listed | Pirelli Cinturato Gravel |
| Brake | not listed | Shimano GRX RX820 |
| Rotor | not listed | Shimano RT-MT800 |
| Handlebar | not listed | Deda Gravel 100 |
| Stem | not listed | Deda Gravel |
| Headset | not listed | Acros T47 |
| Saddle | not listed | Selle Italia Novus Boost Evo Superflow FeC |
| Bottle cage | not listed | Colnago Matt Black |
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