Specialized – Crux Expert Gravel Bike – Shimano GRX Di2
Light, fast, and exceptionally capable, the Specialized Crux Expert is built for riders who demand high performance across gravel, mixed terrain, and race conditions. As the lightest gravel bike platform ever created, the Crux delivers an unmatched ride feel—climbing effortlessly, handling precisely, and floating across rough surfaces with confidence. Equipped with Shimano’s advanced GRX Di2 1x12 electronic drivetrain, durable Roval Terra C wheels, and fast-rolling 700x40mm Pathfinder tyres, this build is ready for speed and control straight out of the box.
Key Features
- Ultra-lightweight gravel platform inspired by Aethos design principles
- Frame weights from just 825g (10r) for exceptional climbing and efficiency
- Massive tyre clearance: up to 47c / 650b x 2.1” for true all-terrain capability
- Shimano GRX Di2 1x12 electronic shifting for precise, reliable performance
- Hydraulic disc brakes for confident stopping in all conditions
- Roval Terra C Disc wheels – lightweight, strong, and gravel-ready
- 700x40mm Pathfinder 2Bliss Ready tyres for speed and grip on mixed surfaces
- Performance gravel geometry with race-inspired handling
- Nimble, responsive ride feel with excellent power transfer and comfort
Lightest. Capable. Responsive.
Lightest: 725g S-Works 12r and 825g 10r frames. We took the revolutionary breakthroughs that made Aethos the lightest bike ever and applied them to the Crux. The result? A gravel bike that climbs like a dream, floats over nightmarish terrain, and weighs less than a full bottle in your cage.
Capable: Massive tyre clearance up to 47c or 650b x 2.1” opens up a wide range of terrain possibilities, giving you the freedom to ride where others can’t.
Responsive: Nimble, supple, and reactive—responsive at the pedals and smooth in the saddle, with performance gravel geometry inspired by Crux’s cyclocross heritage.
Why Choose the Specialized Crux Expert?
The Crux Expert is built for riders who want speed without compromise. Combining one of the lightest frames ever produced with modern gravel capability and electronic shifting, it delivers a ride that is fast on climbs, confident on descents, and smooth over rough terrain. Whether racing, exploring, or pushing your limits, the Crux is designed to perform at the highest level.