S-Works Crux Frameset

The S-Works Crux remains the world’s lightest gravel bike — and now it’s even lighter. Retaining its generous tire clearance on both fork and rear triangle for larger-volume tires, as well as its proven high-performance gravel geometry, this latest evolution gains a modern UDH rear dropout for improved compatibility and durability.

Ultra-Lightweight Performance
Built from S-Works FACT 12r carbon, the frame weighs just 725 g — lighter than your water bottle. It climbs like a dream, floats over rough terrain, and delivers an unmatched combination of speed and efficiency for every gravel adventure.

Go Anywhere Capability
With clearance for up to 47c tires or 650b x 2.1” setups, the Crux is ready to handle any surface. More clearance means more versatility, letting you push the limits of where and how fast you can ride.

Responsive & Comfortable
Sharp and lively under power, yet composed and comfortable in the saddle. Its performance gravel geometry takes inspiration from the Crux’s legendary cyclocross heritage, delivering agility without sacrificing all-day comfort.

Key Features

• Frame: S-Works Crux FACT 12r Carbon, Rider-First Engineered™, threaded BB, 12x142 mm thru-axle, flat-mount disc, UDH dropout

• Fork: S-Works FACT Carbon, 12x100 mm thru-axle, flat-mount disc

• Seatpost: Roval Alpinist Carbon

• Seat Collar: Specialized Alloy, 30.0 mm, titanium bolt

• Weight: 1.43 kg (size 56, painted production frame)

• Tire Clearance: Up to 47c (700c) or 2.1” (650b)

Whether you’re chasing podiums, gravel epics, or simply the lightest, most responsive ride possible, the S-Works Crux frameset sets the ultimate benchmark.

The manufacturer reserves the right to make changes to product information on the site at any time without notice, including information regarding equipment, specifications, models, colors, materials, and prices. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights refer to pre-production painted products at the time of printing. The weight of the finished product may vary.