Open Back SL Carbon Arm Cups

Open Back SL Carbon Arm Cups Info

The TriRig Open Back SL Carbon Arm Cups are purpose-built for athletes who want maximum ergonomic support with minimal weight. As part of TriRig’s SL lineup, these arm cups focus on a slim, low-profile shape that keeps the rider firmly supported with reduced movement—ideal for aggressive aero positions where stability and precision matter most.

Constructed from lightweight carbon fiber, the Open Back SL cups weigh just 275 grams per set, placing them among the lightest full-size carbon arm cups available. Their extended shape increases reach, arm wrap, and usable surface area, helping distribute pressure more evenly across the forearms. This results in improved comfort and reduced fatigue, especially during long-course triathlon or sustained time-trial efforts.

To ensure a highly personalized fit, the Open Back SL Carbon Arm Cups feature additional mounting points and slotted bolt holes, offering an exceptional range of adjustability. Each set includes TriRig’s textured neoprene pads, providing a secure, cushioned interface that maintains grip and comfort even as conditions change over the course of a ride.

TriRig Open Back SL Carbon Arm Cups Specs

• Material: Lightweight carbon fiber construction.
• Weight: 275 g per set.
• Design: Slim, low-profile open-back shape for reduced movement.
• Support: Extended surface area for increased reach and arm wrap.
• Pads: Includes textured neoprene pads for grip and cushioning.
• Adjustability: Multiple mounting points and slotted bolt holes for fine-tuned fit.

Design Benefits

1. Ultralight performance: Carbon construction minimizes weight without sacrificing support.
2. Enhanced stability: Low-profile shape keeps arms planted in aggressive aero positions.
3. Improved ergonomics: Larger contact area reduces pressure and fatigue.
4. Highly adjustable: Broad mounting range supports precise cockpit tuning.

Final Take

The Open Back SL Carbon Arm Cups deliver a meaningful upgrade for riders focused on weight savings, fit precision, and long-duration comfort. With their lightweight carbon build and refined ergonomic design, they are an excellent choice for athletes pushing performance at the highest level.