Argon 18 Dark Matter Rival XPLR AXS (2026): an adventure-ready carbon gravel bike with the perfect balance of performance and control. Fitted with SRAM’s wireless Rival XPLR AXS 12-speed drivetrain and hydraulic disc brakes, the Dark Matter delivers electronic precision and confident braking over everything from back roads to bridleways. Looking for a higher-spec build? See the Dark Matter Force XPLR AXS below. Jump to: What • How • Why • Upgrade • FAQ WHAT is the Argon 18 Dark Matter Rival XPLR AXS? The Dark Matter Rival XPLR AXS is Argon 18’s carbon gravel platform designed for speed, stability, and adventure. Its progressive geometry gives confidence off-road while the SRAM Rival XPLR AXS wireless groupset provides seamless shifting and a clutter-free cockpit. With hydraulic disc brakes and clearance for wide tyres, it’s built to handle unpredictable terrain in comfort and control. Frame: Argon 18 Dark Matter carbon gravel frame and fork Groupset: SRAM Rival XPLR AXS 12-speed wireless electronic Brakes: Hydraulic disc brakes Tyre clearance: Up to 45 mm Mounts: Rack and fender mounts for bikepacking setups HOW does it perform? With the Dark Matter Rival XPLR AXS, every detail is tuned for real-world riding. The carbon frame’s engineered compliance smooths out rough gravel while maintaining power transfer. Wireless shifting ensures instant gear changes with no cables to stretch or clog with dirt. Wireless precision: SRAM AXS electronic shifting Confident control: Hydraulic braking in all weather Optimised geometry: Stable yet agile handling on mixed terrain Long-distance comfort: Tuned carbon layup reduces fatigue WHY choose the Dark Matter Rival XPLR AXS? Designed for riders who want to explore more, the Dark Matter Rival XPLR AXS blends the best of road efficiency with gravel toughness. Lightweight, versatile and built with modern tech, it’s ready for weekend adventures, gravel races, and daily commutes alike. Best for: Gravel racing, adventure rides, endurance cycling Standouts: Wireless shifting, carbon performance, versatile mounts Upgrade option: Argon 18 Dark Matter Force XPLR AXS (2026) For riders chasing top-tier performance, the Dark Matter Force XPLR AXS adds SRAM’s Force-level wireless drivetrain for lighter, faster, and smoother shifting — with the same carbon gravel chassis and adventure-ready geometry. Groupset: SRAM Force XPLR AXS 12-speed wireless electronic Brakes: SRAM hydraulic disc Frame: Argon 18 Dark Matter carbon View Argon 18 Dark Matter Force XPLR AXS (2026) Sizing & Fit Gravel geometry is designed for balance and control. Choose your size based on reach, comfort, and intended riding position. Small160–170 cm Medium171–180 cm Large181–190 cm XL191–200 cm See our size guide or ask our team for personalised advice. Frequently Asked Questions What is SRAM XPLR AXS? It’s SRAM’s gravel-specific 12-speed wireless drivetrain, tuned for wider range gearing and smoother transitions off-road. Is this frame carbon? Yes — it features Argon 18’s advanced carbon construction for strength and vibration absorption. Can it be set up tubeless? Yes — both wheels and tyres are tubeless-ready for lower pressures and improved comfort. What’s the tyre clearance? Up to 45 mm tyres, giving flexibility for gravel, adventure, or mixed-surface riding. Who is this bike for? Gravel riders, adventurers, and endurance cyclists wanting a fast and capable carbon bike with modern wireless tech. More like this: Shop Gravel Bikes • Explore Argon 18 Range Assembly & First Service Built and safety-checked by Cytech-qualified mechanics. In-store bikes include a FREE 6-week health check; Mail Order bikes include a FREE Multi-Tool / Pedal Spanner / Pedals. Delivery / Click & Collect Fast UK delivery or FREE Click & Collect from our stores. Finance & Cycle to Work Spread the cost (subject to status) or save with Cycle to Work. On occasion, without notice, manufacturers may change product design and/or specifications.
