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S-Works CruX Frameset


2018 S-Works CruX Frameset

The S-Works CruX frameset is a 'cross-optimized warrior. With its S-Works FACT 11r carbon frame, flat disc brake mounts, and S-Works Fact carbon seatpost, it's ready to be built up exactly how you want it—you have the foundation for a real course crusher.

Beginning with the frame, we implemented our Rider-First Engineered™ technology that was first introduced on our Tarmacs. Using size-specific tubes and layups, this technology allows the CruX to feature the same ride characteristics across every size in the range. Not only this, but it also allowed us to significantly drop the frame weight, so the CruX now comes in around a low 900 grams for a 56cm—over 400 grams lighter than the previous frameset. A light and stiff frame, alone, isn't useful in a 'cross race if it isn't compliant, however, which is why the new CruX also combines stiffness and compliance in all the right places. And to assist with the latter, we lowered the seat collar by two centimeters for more exposed seatpost and, therefore, cushion for big hits.

We also know that cyclocross races are often won in the corners and over the barriers, which is why the CruX geometry takes this into account. The top tube has been design for easy shouldering when you're hopping off to clear barriers, as it features a large opening to the front triangle and a flat bottom. For stability in the corners and on off-camber sections, the geometry has a low bottom bracket and a sharp front end. This combination also helps to initiate corners, regardless of the terrain.

With maximum mud shedding ability in mind, we included eight millimeters of clearance on all sides of a 33mm tire, providing plenty of clearance for muddy conditions. It's awesome to have a light bike, after all, but frame weight becomes irrelevant when it's covered in 10 pounds of mud.

Technical Specifications

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S-Works FACT 11r carbon, Rider-First Engineered™, 1-3/8"" lower bearing, 12x142mm thru-axle, flat mount disc, OSBB


S-Works FACT 11r carbon, 12x100mm thru-axle



C-clips for bottom bracket shell 


OSBB, CeramicSpeed bearings



S-Works FACT carbon, 20mm offset

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.


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Seatpost Length350mm350mm350mm350mm350mm350mm350mm
Head Tube Length100mm115mm125mm140mm155mm170mm190mm
Head Tube Angle69.5°70.5°71.5°71.5°72°72.5°73°
BB Height281.5mm281.5mm281.5mm283.5mm283.5mm285.5mm285.5mm
BB Drop67mm67mm69mm69mm71mm71mm71mm
Fork Length, Full400mm400mm400mm400mm400mm400mm400mm
Fork Rake/Offset50mm50mm50mm50mm50mm50mm50mm
Front Center592mm592mm593mm605mm611mm618mm627mm
Chainstay Length425mm425mm425mm425mm425mm425mm425mm
Top Tube Length, Horizontal501mm509mm534mm550mm563mm578mm597mm
Bike Standover Height763.5mm781.5mm794.5mm808.5mm824.5mm840.5mm861.5mm
Seat Tube Length470mm490mm510mm530mm550mm570mm600mm
Seat Tube Angle72.5°73°73.25°73.5°74°75.5°75.5°

Rider Reviews

  • 5
  • 1 Reviews

Love this bike.

Built this up with Specialized wheels and Sram CX groupo. It's a great no frills set up thats perfect for CX racing. Nice and light with awesome handling.

El G.