TriRig Closed Back SL Carbon Arm Cups

The TriRig Closed Back SL Carbon Arm Cups are built for triathletes and time trialists who run a high-hand or upward-tilt position — a setup where most standard cups leave you without enough elbow support. The closed-back design wraps further around the arm, creating stable, secure contact that holds your position through long efforts without shifting or pressure points. At 380 grams per set, the carbon construction keeps weight in check without compromising rigidity.

Slotted bolt holes and additional mounting points extend your adjustment range, so dialing in your fit isn't a compromise between what the cup allows and what your body needs. Textured neoprene pads add grip and cushioning where it counts, and the increased surface area helps distribute load across longer rides. Designed to integrate with a wide range of aerobar setups — including TriRig Alpha One and Speed Concept hardware — these cups are a direct path to a more stable, better-fitting cockpit.

TriRig Closed Back SL Carbon Specs at a Glance

• Material: Carbon fiber
• Weight: 380g per set
• Design: Closed-back for increased elbow wrap and support
• Adjustment: Slotted bolt holes and multiple mounting points
• Pads: Textured neoprene for grip and cushioning