Signature Open Back Arm Cups: Aero Comfort Made Simple

The TriRig Signature Open Back Arm Cups are built to deliver reliable comfort and performance at an unbeatable value. Constructed from lightweight yet ultra-strong ThermoPlast™, they offer durability without adding unnecessary weight—making them one of the most accessible upgrades for triathletes and time-trial cyclists.

Designed with textured neoprene pads, they provide just the right mix of grip and cushioning, helping you hold your aero position longer and more comfortably. With extended mounting slots and multiple bolt positions, the Open Back Arm Cups are highly adjustable, ensuring compatibility with a wide range of aero setups.

Simple, versatile, and effective—these arm cups make staying aero easier than ever.