20" 406 ArcX Carbon Fiber Rim - 37mm Depth 31mm Wide | Aero Clincher/Tubeless Ready for Folding Bike & BMX

ArcX Series: The Ultimate Balance of Aero and Agility

The ArcX 20" (406mm) carbon fiber rim is designed for cyclists who refuse to compromise between weight and aerodynamics. With a versatile 37mm depth and a stable 31mm external width, this rim provides a stiff, responsive feel that excels in both urban sprinting and long-distance touring.

The wider 31mm profile is optimized for modern wider tires, ensuring better traction and a lower rolling resistance when set up as Tubeless Ready.

Key Features:

• ArcX Aerodynamics: The 37mm U-shape profile minimizes crosswind interference while providing a significant aero advantage over standard rims.

• Superior Stiffness: The 31mm wide stance increases lateral rigidity, translating every watt of power into forward motion.

• Premium Construction: Built using high-modulus Toray carbon fiber and our signature air bladder molding technology for maximum structural integrity.

• Versatile Application: Specifically engineered for high-end folding bikes (Dahon, Tern, Fnhon) and competitive BMX racing.

Bicycle Wheel Weight Calculator

Note:

We provide custom assembly wheels building service because have many configurations, so the weight of the wheels need be calculated.

If you need lightweight wheels, please choose lightweight rims, hubs, and spokes.