Crux 5 Frameset - FACT 10r Carbon

Crux 5 Frameset - FACT 10r Carbon

The Crux 5 Frameset delivers the exact chassis behind the fastest gravel race bike ever made — without a stock build to work around. Not just because it's the lightest. Not just because it's Specialized's most aero gravel platform. Not just because it handles dirt like a Tarmac handles pavement. It's here because it lets you build the fastest gravel bike ever made around your own choice of groupset, wheels, and finishing kit. Crux 5 turns more of your effort into pure speed — validated on real race courses, real terrain, and real riders.

Product details

Key features

• Race-proven FACT 10r Carbon chassis: the same 897-gram frame used across the Crux 5 range, Rider First Engineered™ for size-specific stiffness and handling.
• Full custom-build flexibility: a bare frameset lets you spec your own groupset, wheels, and cockpit around Specialized's fastest gravel race platform.
• S-Works FACT Carbon fork: shared with the S-Works and S-Level Crux 5 builds, so there's no compromise on the front end.
• Threaded BSA bottom bracket: a 68mm threaded shell for simple, creak-free maintenance.
• UDH derailleur hanger: Universal Derailleur Hanger compatibility for easy replacement and broad drivetrain compatibility.
• Includes S-Works finishing kit: ships with an S-Works Tarmac SL8 Carbon seatpost and integrated wedge seat binder.
• Frame: Crux 5 FACT 10r Carbon, Rider First Engineered™, threaded BB, 12x142mm thru-axle, flat-mount disc, UDH dropout
• Frame Weight: Approx. 897g (size 56)