Why buy your bike from Sigma Sports?
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Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
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Specialized S-Works Crux Gravel Bike
Claimed to be the fastest Gravel Bike currently on the market, the Specialized S-Works Crux is in a class of its own when it comes to weight, tyre clearance and capability. Labelled as the ultimate expression of gravel performance, this latest revision of the Crux channels the Aethos design process to drop the frame weight down to just 725 grams for this FACT 12r carbon model. The nimble geometry is inspired by the Crux’s cyclocross race heritage and sees a long reach paired with a reduced stack height to deliver fast, reactive handling.
Equipped with Roval Terra CLX Disc wheels and 38c Specialized Pathfinder Pro tyres, this bike rolls fast, grips well and reacts quickly to inputs of power, and the tubeless-ready rims allow the rider to take advantage of lower air pressures. There's a maximum clearance of 47c, or 2.1” when paired with the smaller 650b wheel standard. This enhances the frame’s capability, ensuring versatility for a range of ride styles and terrains. The carbon layup is highly responsive yet delivers fatigue-reducing vibration-damping suitable for comfort over long distances.
SRAM's flagship electronic groupset, RED eTap AXS delivers state of the art wireless shifting across its wide 12-speed range and can be customised through the accompanying SRAM mobile app to personalise your shifting experience. Powerful SRAM hydraulic disc brakes provide supreme control on steeper gradients, and the Supacaz Super Sticky Kush bar tape adds a premium, aftermarket touch.
Highlights
- The Aethos inspired frame weighs in at only 825 grams and features a premium FACT 10r carbon construction
- With Diverge-level tyre clearance of up to 700c x 47c or 650b x 2.1”, the Crux takes you anywhere you can imagine, at full gas
- Nimble, supple, and reactive. Responsive at the pedals, supple in the saddle, the Crux blends speed and comfort for an unrivalled ride feel
- Performance gravel geometry and a race-influenced fit is inspired by Crux’s iconic history in cyclocross
- The combination of clearance to weight unlocks all-new riding potential
- Fast-rolling Roval Terra CLX II 700c wheels deliver rapid acceleration and durable performance
- 38c Specialized Pathfinder Pro tyres boost grip across a range of surface types
- Fully-wireless SRAM RED eTap AXS drivetrain provides crisp, reliable shifting across the wide 12-speed range
Technical Specification
| Frame | Specialized S-Works Crux FACT 12r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | Specialized S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Bottom Bracket | SRAM DUB BSA, 68mm, threaded |
| Stem | Specialized S-Works SL, alloy, titanium bolts, 6-degree rise |
| Handlebar | Roval Terra, carbon, 103mm drop x 70mm reach x 12º flare |
| Bar Tape | Supacaz Super Sticky Kush |
| Front Brake | SRAM RED eTAP AXS, hydraulic disc |
| Rear Brake | SRAM RED eTAP AXS, hydraulic disc |
| Brake Levers | SRAM RED eTap AXS |
| Rear Derailleur | SRAM RED XPLR eTap AXS, 12-speed |
| Shift Levers | SRAM RED eTap AXS, 12-speed |
| Chain | SRAM RED, 12-speed |
| Cassette | SRAM XPLR, XG-1271, 12-speed, 10-44t |
| Crankset | SRAM RED AXS power meter |
| Front Wheel | Roval Terra CLX II, 25mm internal width, 32mm depth, 21h, tubeless-ready, Roval LFD hub with ceramic SINC bearings, Center Lock disc, DT Swiss Aerolite spokes |
| Rear Wheel | Roval Terra CLX II, 25mm internal width, 32mm depth, 21h, tubeless-ready, Roval LFD hub with ceramic SINC bearings, Center Lock disc, DT Swiss Aerolite spokes |
| Front Tyre | Specialized Pathfinder Pro 2Bliss Ready, Transparent Sidewall, 700x38c |
| Rear Tyre | Specialized Pathfinder Pro 2Bliss Ready, Transparent Sidewall, 700x38c |
| Saddle | Specialized Body Geometry S-Works Power, carbon fibre rails, carbon fibre base |
| Seatpost | Roval Alpinist carbon |
| Pedals | Available to be purchased separately |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Specialized S-Works Crux Gravel Bike Sizing
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