What is the Anti Matter?

• The fastest, most aerodynamic gravel race bike Argon 18 has ever made.
• A gravel race platform engineered as a complete aerodynamic system, 
integrating frame, components, and rider for maximum performance. Not just 
a bike, but a purpose-built system designed to perform at race pace.
• Inspired by the demands of modern gravel racing, where speeds are higher 
and conditions are unpredictable. Built to deliver road-bike efficiency on dirt, 
without compromising control, stiffness, or confidence.
• A machine made to go faster, push harder, and stay precise when it matters 
most.
• Specced with the ATTEN CHB-01 one-piece cockpit.
• Featuring proprietary aero bottle cages and co-developed ATTEN x Apidura 
frame bags, carrying race essentials with no aerodynamic penalty
Wide, Deep Fork Design: Balances aerodynamic performance with generous 
tire clearance and stability at speed.
• 55mm Tire Clearance: Built to handle modern gravel racing with full versatility 
across conditions.
• CFD-Optimized Tube Profiles: Refined through extensive simulation and 
testing to reduce drag in real race scenarios.
• Horizontal, Dropped Seatstays: Enhance aerodynamics while improving 
compliance and control on rough terrain.
• Oversized T47 Bottom Bracket: Maximizes stiffness and power transfer 
under load.
• Pro-Level Carbon Layup: Advanced construction delivering optimal weight, 
stiffness, and ride quality.
• Universal Derailleur Hanger (UDH): Simple, reliable, and easy to service.
• Side-Load Aero Bottle Cage System: Integrated design that improves airflow 
while maintaining easy access