Closed Back Carbon Arm Cups

Closed Back Carbon Arm Cups: Unmatched Aero Comfort and Stability

The TriRig Closed Back Carbon Arm Cups are renowned for aero comfort, providing the ultimate combination of support, stability, and performance. With a length of over 200mm and substantial arm wrap, these arm cups offer more surface area than any other production arm cups on the market. Built from durable, lightweight carbon, the Closed Back Carbon Arm Cups deliver exceptional strength while maintaining an incredibly low weight.

Designed for triathletes and time-trial cyclists, the Closed Back Scoops provide additional support at the back, wrapping behind the elbow—making them ideal for high-hand or upward-tilt aero positions. This unique design keeps you locked into your aero position while allowing your upper body to relax, enhancing both comfort and efficiency during long rides.

Each set of Closed Back Carbon Arm Cups comes with our signature textured neoprene pads, offering the perfect balance of grip and cushion, ensuring you stay comfortable and stable even during the most demanding rides.

Closed Back Carbon Arm Cups represent one of the most significant comfort upgrades you can make to your triathlon or TT bike. The added comfort allows you to stay in the aero position longer, resulting in faster times and improved performance. 

For enhanced cockpit flexibility, consider adding Wingspan Extenders to your cart. Need hardware for Speed Concept compatibility? Add it to your cart for seamless integration.

• At 418g grams per set, these cups deliver minimal weight with maximum comfort.
• Ergonomic Support: Increases arm wrap and surface area for a more comfortable ride, ideal for extended use.
• Extended Adjustment Range: Features multiple mounting points and slotted bolt holes to accommodate various setups.
• Textured Neoprene Pads: Provides superior grip and cushioning for enhanced comfort and stability.
• • ⚙️Compatibility: Scoops mount using two fore/aft bolts into matching threaded bosses on your arm-pad bracket/aerobar. Check that your bracket’s hole pattern aligns; both bolts must be used for a safe, stable install. Non-standard patterns may require Wingspan Extenders.
  • Fits most aerobars on the market, including Alpha One/Alpha Prime.
  • Comes with M5 and M6 bolts for easy installation.
  • The Open Back SL Carbon Arm Cups are not recommended for use on the Trek Speed Concept Gen 3 (2022+) due to their narrower hole pattern. Other Scoops variants are compatible with the appropriate hardware kit.