Description
Specialized S-Works Crux 5 AXS Gravel Bike
The S-Works Crux 5 gravel bike represents a complete paradigm shift in gravel racing by prioritising real-world speed over simple laboratory metrics. While most brands focus on either aerodynamics or weight in isolation, this machine integrates both into a chassis that weighs a mere 7.1 kilograms. By utilising FACT 12r carbon technology, the frame hits a featherweight 789 grams, allowing you to float over steep climbs while maintaining the structural integrity needed for aggressive descending. This is not just a lightweight bike; it is a precision instrument designed to convert every watt of your output into forward momentum, ensuring that your effort is never wasted on inefficient frame flex or unnecessary bulk.
Engineered for Aerodynamic Dominance
Efficiency in the wind is no longer reserved for the tarmac, and the Crux 5 brings professional road-level aerodynamics to the dirt. Equipped with Roval Terra Aero CLX wheels and a fully integrated Roval Terra cockpit, the bike slices through the air with the same clinical efficiency as a dedicated aero road bike. This integration reduces drag significantly over long solo efforts or when pulling at the front of a lead group. By treating gravel racing as a high-speed discipline where seconds matter, this setup provides the lowest time to finish of any gravel platform ever produced, giving you a distinct mechanical advantage when the pace intensifies on exposed sections of the course.
Unmatched Control and Componentry
The handling characteristics of the Crux 5 are tuned to mirror the responsiveness of the legendary Tarmac, providing a level of agility that feels intuitive on technical trails and loose corners. This surgical precision is complemented by the flagship SRAM RED XPLR drivetrain, which offers wireless electronic shifting that remains flawless even under the coating of dust and mud. Every shift is crisp and immediate, allowing you to maintain your cadence through rolling terrain. For the competitive cyclist who demands the absolute pinnacle of technology, this bike offers the perfect marriage of stability and speed, purpose-built to put you on the top step of the podium.
Technical Specification
| Frame | S-Works Crux 5 FACT 12r 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 |
| Tape | Supacaz Super Sticky Kush |
| Handlebar/Stem | Roval Terra Cockpit, Integrated Bar/Stem |
| Front Brake | SRAM RED E1, hydraulic disc |
| Rear Brake | SRAM RED E1, hydraulic disc |
| Rear Derailleur | SRAM RED AXS XPLR E1, 13-speed |
| Shift Levers | SRAM RED AXS E1, hydraulic disc |
| Cassette | SRAM RED XPLR E1, 13-speed, 10-46t |
| Crankset | SRAM RED XPLR E1, Quarq power meter, 40t |
| Bottom Bracket | Ceramic Speed BB Alpha, BSA DUB |
| Chain | SRAM RED E1 |
| Front Wheel | Roval Terra Aero CLX, 27mm internal width, tubeless ready, 50mm depth, 18h, Roval LF18-F hub with ceramic SINC bearings, Centerlock disc, Roval by ARRIS, Composite Aero Spoke with Ti End Pieces |
| Rear Wheel | Roval Terra Aero CLX, 27mm internal width, tubeless ready, 45mm depth, 24h, Roval LF19-R hub with ceramic SINC bearings, Centerlock disc, Roval by ARRIS, Composite Aero Spoke with Ti End Pieces |
| Front Tyre | Pathfinder 700x45, Tubeless Ready |
| Rear Tyre | Pathfinder 700x45, Tubeless Ready |
| Inner Tubes | 700x32x50mm, 60mm Presta valve |
| Seat Post | S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset, Lightweight Saddle Clamp |
| Seat Binder | Integrated Wedge |
| Saddle | S-Works Power with Mirror |
| Weight | 7.1 kg (Size |
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.
Size Guide
Specialized S-Works Crux 5 AXS Gravel Bike Sizing
Delivery & Returns
Reviews
Unable to display Reviews due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Q&A
Unable to display Q&A due to Privacy Settings.
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 42% 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.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.