The S-Works Crux Frameset is the world’s lightest gravel bike that doesn’t sacrifice the capability you need for real adventures. Built using the same breakthrough carbon technology from Specialized’s legendary Aethos road bike, the Crux delivers an incredible combination of lightweight performance and go-anywhere versatility that makes every ride feel effortless.

At just 725g, this frame is remarkably light while having serious terrain capability. The Crux climbs hills with ease, rolls smoothly over rough gravel, and responds quickly when you put the power down, all while giving you room for the big tires you need for confidence on varied surfaces. With clearance for 47c tires or even 650b mountain bike tires up to 2.1″, it’s ready for everything from smooth gravel roads to chunky trail riding.

The geometry takes inspiration from Specialized’s cyclocross racing experience, giving you a position that’s efficient for speed but comfortable enough for long days in the saddle. Whether you’re exploring new backroads, tackling gravel races, or just looking for a bike that can handle whatever adventure you throw at it, the Crux makes it all feel possible.

Key Features

• Incredibly Lightweight Advanced 12r carbon construction weighs just 725g without sacrificing strength.
• Big Tire Capability Clearance for up to 47c gravel tires or 650b x 2.1″ for versatile terrain options.
• Versatile Geometry Race-inspired position that stays comfortable for long days in the saddle.