TriRig Ultimate EVO Arm Cups

The TriRig Ultimate EVO Arm Cups are TriRig's top arm cup, made from carbon fiber and sold in open back and closed back versions. TriRig describes them as built for aerodynamic efficiency, comfort and control, with an ultra-light carbon construction that gives a secure, stable platform for long rides and aggressive aero positions.

What sets the Ultimate EVO apart from the other cups here is the list of detail changes. TriRig lists more hole spacing for a custom fit, a new cable routing channel for cleaner cable management, higher sides that TriRig says improve aerodynamics and forearm stability, and enhanced hand position adjustability for fine-tuning an aero setup. A set of hand position extensions comes with the cups.

The two versions suit different riders. The open back is optimized for women and riders with shorter forearms, with better comfort and reach. The closed back is built to support the elbow so you stay locked in. TriRig intends the cups for athletes chasing speed, stability and aerodynamic precision, and they are the most expensive arm cups in the TriRig range we carry. If you are comparing them with the High Side EVO, the cable routing channel and the included hand position extensions are the differences TriRig names.