Product Info
Details + Specs
Model Summary
The Crux Frameset - FACT 10r Carbon is the build-your-own entry into Specialized's current Crux platform: the lightest gravel bike in the world, with the exceptional capability of massive tyre clearance and performance gravel geometry. At a claimed 825 grams for the frame, it shares its Rider First Engineered™ construction and S-Works FACT Carbon fork with the S-Works tier above it, so you get the ride quality of the range-topping Crux without being locked into a factory build kit. It's not just the ultimate expression of gravel performance — it's your one-way ticket to gravel enlightenment, ready for the groupset, wheels, and finishing kit of your choice.
Key Highlights
- Ultra-light FACT 10r Carbon frame: a claimed 825-gram frame weight puts it among the lightest gravel frames available, without giving up race-day stiffness.
- Massive tyre clearance: fits up to 47c on 700c or 2.1" on 650b wheels, giving genuine Diverge-level capability in a race-focused package.
- Race-influenced gravel geometry: performance gravel geometry and race-influenced fit drawn from Crux's iconic history in cyclocross deliver nimble, responsive handling.
- UDH-compatible drop-out: the SRAM Universal Derailleur Hanger standard keeps you future-proofed for the latest 1x drivetrains.
- Build-your-own platform: supplied as a genuine frameset — frame, S-Works FACT Carbon fork, and alloy seat binder — so you can spec the exact groupset and finishing kit you want.
Technical Specifications
- Frame: Crux FACT 10r Carbon, Rider First Engineered™, threaded BB, 12x142mm rear thru-axle, flat-mount disc, UDH dropout — 825g claimed weight
- Fork: S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
- Bottom Bracket: Threaded (BSA)
- Seat Binder: Specialized Alloy, 30mm
- Max Tyre Clearance: 47c (700c) / 2.1" (650b)
- Cable Routing: Fully internal
- Included: Frame, fork, and seat binder (seatpost, headset, and groupset sold separately)