2026 Colnago G4-X SRAM XPLR vs 2026 Specialized Crux Comp Shimano
The 58 is the Specialized Crux Comp Shimano size closest to your 570 Colnago G4-X SRAM XPLR. 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 Specialized Crux Comp Shimano
Compared with the Colnago G4-X SRAM XPLR in 570, the Specialized Crux Comp Shimano in 58 places the top of the head tube at about the same height and 5 mm further back, relative to the bottom bracket.
- Frame stack
- −2 mm
- About the same height
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.8°
- Steeper: sharper steering
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Colnago G4-X SRAM XPLR numbers we have for size 570 are missing the wheelbase. The numbers below still compare.
Geometry side by side
| Measurement | Colnago G4-X SRAM XPLR 570 | Specialized Crux Comp Shimano 58 | Difference |
|---|---|---|---|
| Reach | 410 | 405 | −5 mm |
| Stack | 600 | 598 | −2 mm |
| Head tube angle | 71.5 | 72.25 | +0.8° |
| Seat tube angle | 73 | 73.5 | +0.5° |
| Effective top tube | 596 | 582 | −14 mm |
| Chainstay length | 430 | 425 | −5 mm |
| BB drop | 70 | 72 | +2 mm |
| Fork length | 406 | not listed | |
| Wheelbase | not listed | 1045 | |
| Head tube length | not listed | 167 |
Differences are the Specialized Crux Comp Shimano minus the Colnago G4-X SRAM XPLR. Full charts: 2026 Colnago G4-X SRAM XPLR, 2026 Specialized Crux Comp Shimano.
Where each sits in its class
Colnago G4-X SRAM XPLRSpecialized Crux Comp 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 | Colnago G4-X SRAM XPLRSRAM Force XPLR AXS 1x | Specialized Crux Comp ShimanoComp Shimano GRX |
|---|---|---|
| Frame | Colnago G4-X | Specialized Crux FACT 10r Carbon |
| Fork | Colnago G4-X Carbon | Specialized FACT carbon |
| Shifter | SRAM Force | Shimano GRX RX820 820 |
| Derailleur | SRAM RD-FRC Force | Shimano GRX RX822-GS |
| Cassette | SRAM Force | Shimano XT |
| Chain | SRAM CN-FRC Force | Shimano XT M8100 |
| Crankset | SRAM DUB | Shimano GRX RX820 |
| Chainring | SRAM 40T | Shimano GRX RX820 |
| Bottom bracket | SRAM DUB | Shimano BB |
| Wheelset | Vision SC45 | DT Swiss G540 |
| Tire | Pirelli Cinturato Gravel | Specialized Pathfinder Pro 2BR |
| Brake | SRAM Force | Shimano GRX RX820 |
| Rotor | SRAM CenterLine XR | Shimano 180mm CenterLock |
| Handlebar | Colnago CC.01 Wide | Specialized Adventure Gear |
| Grips | Colnago Grip Black | not listed |
| Headset | Acros 42x52x7 | not listed |
| Seatpost | Colnago Carbon D-Shape | Roval Terra Carbon |
| Saddle | Selle Italia Novus Boost Evo Superflow | Specialized Body Geometry Power Sport |
| Bottle cage | Colnago Matte Black | not listed |
| Stem | not listed | Specialized 3D-forged alloy |
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