The Crux is the lightest gravel bike in the world, combining class-leading weight with exceptional capability and performance-focused gravel geometry. Designed to climb effortlessly and glide across the roughest terrain, it delivers a fast, nimble ride that redefines what’s possible on gravel, from race day to all-day adventures.
This Crux Comp build pairs that ultra-light frame with a dependable Shimano GRX 12-speed drivetrain, durable DT G540 Disc wheels, and grippy 700x40mm Pathfinder 2Bliss Ready tires. The result is a balanced, high-performance gravel bike that thrives on speed, control, and confidence wherever the road—or trail—leads.
Key Features
- One of the lightest gravel bikes with an 825g FACT 10r frame
- Massive tire clearance up to 47c or 650b x 2.1" for unmatched off-road capability
- Performance gravel geometry inspired by cyclocross for nimble, responsive handling
- Shimano GRX 12-speed drivetrain delivers smooth, reliable shifting in all conditions
- DT G540 Disc wheels and 700x40mm Pathfinder 2Bliss Ready tires for durability and
Specifications
Frameset
- Frame: Crux FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc, UDH dropout
- Fork: S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Wheels
- Rims: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples
- Tyres: Pathfinder 700x40, Tubeless Ready
Drivetrain
- Crankset: Shimano GRX RX820 40t
- Shifters: Shimano GRX ST-RX820
- Rear Derailleur: Shimano GRX RX822-GS, 12-speed
- Chain: Shimano XT M8100, 12-speed w/ quick link
- Cassette: Shimano XT, 12-speed, 10-45t
- Bottom Bracket: Shimano Threaded BSA BB
Components
- Handlebar: Specialized Adventure Gear, 118.9mm drop x 70mm reach x 12º flare
- Stem: 3D-forged alloy, 31.8mm, 7-degree rise
- Grips: Supacaz Super Sticky Kush
- Brakes: Shimano GRX RX820
- Saddle: Body Geometry Power Sport, steel rails
- Seatpost: Roval Terra Carbon Seat Post, 20mm Offset
Specialized Crux Sizing
| 52cm | 54cm | 56cm | 58cm | |
|---|---|---|---|---|
| Rider Height (cm) | 163 - 168 | 168 - 175 | 175 - 183 | 183 - 191 |
| Rider Height (ft) | 5'4 - 5'6 | 5'6 - 5'9 | 5'9 - 6'0 | 6'0 - 6'3 |
Product code: 910344
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