Argon 18Anti Matter Rival XPLR AXS E1 Gravel Bike
The Argon 18 Anti Matter Rival XPLR AXS Gravel Bike brings elite aerodynamic engineering to the competitive gravel scene. Designed as a unified speed system, this bike combines a professional-grade carbon layup with the reliable precision of the SRAM Rival AXS wireless drivetrain. Featuring the signature ATTEN CHB-01 aero cockpit and DT Swiss G1800 wheels, the Anti Matter is a purpose-built machine for riders who demand road-bike efficiency and relentless pace on the most challenging off-road courses.
Aerodynamic Excellence and System Integration
The Anti Matter is defined by its holistic approach to wind resistance. Rather than treating components as afterthoughts, Argon 18 has integrated the ATTEN CHB-01 aero handlebar and a specialized frame bag system co-developed with Apidura to ensure minimal drag. Every tube profile has been refined through CFD testing to slice through the air, while the wide fork design improves stability and airflow around the wheels. This allows you to maintain higher average speeds with less effort, making it the ideal choice for long-distance gravel racing where every second counts.
Precision Shifting and Robust Power Transfer
At the core of this build is the SRAM Rival XPLR AXS E1 groupset, providing crisp, cable-free shifting even under the duress of mud and grit. The 40T crankset paired with a 10-46T cassette offers a versatile gear range that excels on steep climbs and fast descents alike. To ensure that your power isn’t wasted, the bike features a SRAM DUB T47 Wide bottom bracket and CeramicSpeed SLT bearings in the headset, offering a stiff and durable platform that can handle the high-torque demands of aggressive gravel riding.
Versatile Handling and Rough Terrain Control
Control is paramount when racing at the limit, and the Anti Matter delivers through a sophisticated balance of stiffness and compliance. The DT Swiss G1800 wheelset is wrapped in Schwalbe G-One RS PRO 45c tyres, providing exceptional grip and a supple ride quality. With frame clearance for tyres up to 55mm, you have the freedom to adapt your setup for any environment. The dropped seatstays and Nitrogen Pro seatpost work together to absorb trail chatter, keeping you comfortable and focused during the final hours of a demanding race.
Professional Grade Reliability
Every detail of the Anti Matter Rival XPLR AXS is chosen for durability and ease of use in racing conditions. The Universal Derailleur Hanger (UDH) ensures easy replacements worldwide, while the Ciclovation Grind Touch bar tape provides a secure, cushioned grip regardless of the weather. From the ergonomic Repente Quasar 2.0 saddle to the integrated ATTEN x Apidura toolkit, this bike is ready to perform straight out of the box. It is a machine that combines the thrill of high-speed racing with the rugged reliability required for the unpredictable world of gravel.
Technical Specification
| Wheelset | DT Swiss G1800 |
| Tyres | Schwalbe G-One RS PRO, TLR 700x45c |
| Tyre Clearance | 55mm Tyre |
| Shifters | SRAM Rival AXS E1 |
| Rear Derailleur | SRAM Rival XPLR AXS E1 |
| Crankset | SRAM Rival XPLR, 40T |
| Chain; SRAM Rival Chain E1 | |
| Cassette | SRAM Rival XPLR XG-1351, 10-46T |
| Bottom Bracket | SRAM BB DUB T47 Wide |
| Handlebar | ATTEN CHB-01 Aero Handlebar |
| Headset | CeramicSpeed SLT Bearings |
| Brakes | SRAM Rival AXS E1 |
| Rotors | SRAM Centerlock Paceline / F |
| Bar Tape | Ciclovation Grind Touch |
| Saddle | Repente Quasar 2.0 |
| Seatpost | Argon 18 TDS-C Nitrogen Pro |
| Toolkit | ATTEN x Apidura frame bag |
| Handlebar size | 38cm |
| Stem length | XS-90mm / S-90mm / M-10mm / L-110mm / XL-120mm |
| Crank length | XS-165mm / S-170mm / M-170mm / L-172.5mm / XL-172.5mm |
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.






































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