TriRig Signature Open Back Arm Cups

Time in the aero position only pays off if you can hold it — and the TriRig Signature Open Back Arm Cups are designed to make that easier. Built from ThermoPlast material and padded with a textured neoprene surface, they give your forearms a cushioned, stable platform that doesn't shift under load. The open-back design increases arm wrap and improves ergonomic support compared to a closed-cup profile, which matters on long efforts where small discomforts compound.

Compatibility is broad by design. Slotted bolt holes and multiple mounting points allow a wide range of fore-aft and lateral adjustment, so they can be dialled into most standard aerobar setups without adapters or guesswork. At 275 grams per set, the ThermoPlast construction keeps overall weight low while maintaining the rigidity you need when pushing through the bars in a sprint or a sustained effort.

TriRig Signature Open Back Arm Cups Specs at a Glance

• Material: ThermoPlast with textured neoprene padding
• Weight: 275g per set
• Design: Open-back for increased arm wrap and ergonomic support
• Mounting: Slotted bolt holes with multiple mounting points for broad aerobar compatibility