Argon 18 Anti Matter SRAM Rival AXS E1

Argon 18 Anti Matter SRAM Rival AXS E1 - Wireless Aero Gravel Performance The Argon 18 Anti Matter is built for gravel riders who want road-bike speed, confident off-road control, and an aerodynamic race platform that still works for long-distance gravel events. It is designed for rough and unpredictable conditions where efficiency, stability, storage, tire volume, and precise handling matter at the same time. The platform combines 55mm tire clearance, the ATTEN CHB-01 aero handlebar, an included ATTEN x Apidura frame bag, integrated aero bottle cages, an oversized bottom bracket area for power transfer, an aerodynamic seatpost, and fast gravel geometry. This makes Anti Matter a strong choice for gravel racing, fondos, mixed-surface endurance riding, and riders comparing premium carbon gravel bikes with integrated storage and aero details. Why buy the Anti Matter SRAM Rival AXS E1? The Rival build is the best value route into the Anti Matter platform. It gives riders the same fast carbon gravel frameset, ATTEN CHB-01 aero handlebar, integrated cabling, included ATTEN x Apidura frame bag, 55mm tire clearance, and SRAM wireless shifting at a lower price than the Force build. Wireless SRAM Rival AXS E1 shifting DT Swiss G1800 XDR gravel wheels Same Anti Matter carbon aero gravel platform as the higher builds Included frame bag, aero cockpit, and integrated cable routing Strong option for riders upgrading from alloy gravel or mechanical drivetrains Which Anti Matter build should you buy? Build Best For Why Choose It SRAM RED XPLR AXS E1 Top-tier gravel race build Choose RED for the lightest, most premium Anti Matter complete build, with SRAM Red XPLR AXS E1, ZIPP 303 XPLR SW wheels, CeramicSpeed SLT headset and T47 BB, Red power meter crank, and flagship-level parts throughout. SRAM Force XPLR AXS E1 Performance-focused gravel racers Choose Force for the stronger wheel package, SRAM Force XPLR AXS E1 wireless shifting, power meter crank, CeramicSpeed bottom bracket, and ZIPP 303 XPLR S wheels. SRAM Rival AXS E1 High-value wireless gravel performance Choose Rival for the same Anti Matter aero carbon platform, wireless AXS shifting, included frame bag, aero cockpit, and a lower price than the Force build. Specifications Category Component Specification Frameset Frame Anti Matter Frameset Fork Anti Matter Frameset Headset IST3 - CeramicSpeed SLT Bearings Frameset Integrated Cables Yes Frameset Storage Optimization System ATTEN x Apidura frame bag included Wheels Wheels DT Swiss G1800 XDR Wheels Tires Schwalbe G-One RS PRO, TLR 700x45c Wheels Tire Clearance 55 mm Group Bottom Bracket SRAM DUB T47 Group Rear Derailleur SRAM Rival AXS Group Crankset SRAM Rival 1 E1 XPLR 40T Group Chain SRAM Rival Chain E1 Group Cassette SRAM Rival XPLR XG-1351, 10-46T Brakes Brakes SRAM Rival AXS E1 Brakes Brake Levers SRAM Rival AXS E1 Brakes Rotors SRAM Paceline X / F:160mm R:160mm Brakes Shifters SRAM Rival AXS E1 Other Handlebar ATTEN CHB-01 Aero Handlebar Other Stem ATTEN CHB-01 Aero Handlebar Other Bar Tape Ciclovation LEATHER TOUCH Tornado Gloss Other Saddle Repente Quasar S 2.0 Other Seatpost Argon 18 Anti Matter Aero, 20mm SB Geometry Measurement Unit XXS 44-46 XS 47-50 S 51-53 M 54-56 L 57-59 XL 60-62 A Seat Tube Height cm Contact us 42.5 46.0 50.5 55.0 59.5 B Seat Tube Angle deg Contact us 74.5 74.0 73.5 73.0 72.5 C Head Tube Angle deg Contact us 70.7 71.1 71.7 71.1 72.2 D Top Tube Length cm Contact us 52.0 53.8 55.8 57.8 60.1 E Chain Stay cm Contact us 42.5 42.5 42.5 42.5 42.5 F Wheelbase cm Contact us 100.4 101.6 102.2 103.9 105.2 G BB Drop cm Contact us 8.0 7.8 7.8 7.6 7.6 H1 Head Tube Length cm Contact us 7.6 10.1 12.2 15.0 17.6 I Stand Over Height cm Contact us 71.4 74.9 78.8 82.8 86.6 L Fork Length, Axle-to-Crown cm Contact us 400.0 400.0 400.0 400.0 400.0 R Fork Rake cm Contact us 51.0 51.0 51.0 51.0 51.0 Fit: Stack and Reach Measurement Unit XXS 44-46 XS 47-50 S 51-53 M 54-56 L 57-59 XL 60-62 J Stack cm Contact us 50.8 53.1 55.5 58.0 60.7 K Reach cm Contact us 37.7 38.4 39.2 40.0 40.9 Saddle Height Min cm Contact us 59.5 63.0 67.5 72.0 76.5 Saddle Height Max cm Contact us 74.5 78.0 82.5 87.0 91.5 FAQ What is the Argon 18 Anti Matter designed for? Anti Matter is designed for fast gravel riding, gravel racing, mixed-surface endurance events, and riders who want a carbon gravel bike with aero integration, tire clearance, storage, and confident handling. Is the Anti Matter more race-focused than the Dark Matter? Yes. The Anti Matter sits as Argon 18's faster, more aero-focused gravel platform, while Dark Matter is more adventure and all-around gravel oriented. Anti Matter is the better choice for riders prioritizing speed, efficiency, and race-day integration. What tire clearance does the Anti Matter have? The Anti Matter platform is listed with 55mm tire clearance, giving riders room for wide gravel tires for comfort, traction, and control on rough surfaces. Does the Anti Matter include a frame bag? Yes. These builds include the ATTEN x Apidura frame bag, co-developed to fit the frame cleanly and support fast gravel riding with easy access while preserving the bike's aero intent. Does SKU appear as a customer-facing variant? No. Size and color are the customer-facing options. SKU is stored only in Shopify's Variant SKU field for inventory and ordering accuracy. What size Anti Matter should I buy? Use the geometry and stack/reach tables as a starting point, then confirm fit with rider height, saddle height, cockpit preference, and intended gravel use. Contact us for fit help before purchase if you are between sizes.