Specialized S-Works Crux Gravel Frameset Description:
The Specialized S-Works Crux Gravel Frameset has generous tire clearance and the ability to absolutely fly over rough and technical terrain, making this frame an excellent base for a gravel bike dream build. The feather-light FACT 12r frame construction paired with a high-performance gravel specific geometry blends durability with nimble handling, a smooth ride, and responsive performance. Generous tire clearance, internal cable routing, a threaded bottom bracket, and thru-axles front and rear completes the basis of a dream bike build that will effortlessly enable a rider to punch a one-way ticket to their gravel enlightenment.
Features:
- Ultra lightweight 12r carbon frame tipping the scale at 725g (= less than one full insulated water bottle)
- Performance gravel race geometry inspired by Crux’s iconic history in cyclocross delivers balanced and responsive handling, and positions the rider for efficient power generation
- FACT 12r carbon fiber frame using technology originally developed for the Aethos road bike maintains rugged durability, but eliminates unnecessary materials to shave weight and optimize the balance between compliance and stiffness
- Internal cable and brake hose routing leads to better aerodynamics and clean lines
- Universal Derailleur Hanger (or UDH) allows conventional rear derailleurs to be mounted, or the UDH can be removed and a SRAM Transmission style derailleur can be directly attached to the frame
- Exceptional tire clearance up to 700 x 47mm or 650b x 2.1”
- Up to three water-bottle cage mounting bosses gives the rider the ability to carry plenty of water or other gear for any of their cycling adventures
- Includes Roval Alpinist carbon fiber seatpost, seat post collar, the headset, and the front and rear thru-axles
Specifications:
- Frame Material: S-Works Crux FACT 12R Carbon (Rider First Engineered) (Threaded BB) (Flat-Mount Disc) (12 x 142mm Thru Axle)
- Fork Material: S-Works FACT Carbon (Flat-Mount Disc) (12 x 100mm Thru Axle)
- Headset: Included (S092500002-Upper | S162500005-Lower)
- Headset Bearing Size: 41.8mm (O.D) X 30.5mm (I.D.) X 8mm (Upper) | 49.5mm (O.D) X 40.5mm (I.D.) X 6.5mm (Lower)
- Brake Compatibility: Disc Only (Hydraulic or Mechanical
- Brake Mounts: Flat Mount
- Rotor Compatibility: 140 or 160mm (Front) | 140 or 160mm (Rear)
- Axle Type: Thru Axle
- Hub Spacing: 12 x 100mm (Front) | 12 x 142mm (Rear)
- Stem: Not Included
- Stem Size: 1-1/8″ Steerer
- Seatpost: Roval Alpinist Carbon
- Seatpost Diameter: 27.2mm
- Seatpost Clamp: Specialized Alloy (30.0mm) (Titanium Bolt)
- Bottom Bracket: Not Included
- Bottom Bracket Type: Threaded BSA
- Bottom Bracket Width: 68mm
- Drivetrain Compatibility: 1x Electronic & Mechanical | 2x Electronic Only (SRAM AXS 2x will limit tire clearance to 42mm)
- Chainring Compatibility: Fits most 42T chainrings and some 44T chainrings
- Tire Clearance: 700c x 47mm | 650b x 2.1”
- Cable Routing: Internal
- Dropper Post Routing: Yes (Mechanical port on top of downtube)
- Water Bottle Bosses: 3 Mounting Positions (Seattube, Downtube Top, Downtube Bottom)
- Fender/Rack Mounts: No
- Front Derailleur Mount: Braze-On
- Rear Derailleur Hanger: Included
- Model Year: 2026
- Color: Nebula Metallic/Quartz Metallic
- Weight: 1460g (56cm)


















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