TriRig Signature Closed Back Arm Cups

The TriRig Signature Closed Back Arm Cups offer a high-performance upgrade for triathlon and time-trial cyclists. Crafted from ultra-light, durable ThermoPlast™ (fiber-reinforced nylon), they strike the perfect balance between strength and weight, providing an exceptional value-driven enhancement to your aero setup.

The closed-back design wraps behind the elbow, delivering superior forearm support to ideal for high-hands or upward-tilt positions—locking you into your optimal aero posture and allowing your upper body to relax while maintaining control.

Each pair comes pre-fitted with textured neoprene pads that provide excellent grip and cushioning. With multiple mounting points and slotted bolt holes, they offer a wide range of adjustability to suit various bar configurations.

TriRig Signature Closed Back Arm Cups Specs at a Glance

• Material: ThermoPlast™ (fiber-reinforced nylon) – ultra-light and durable
• Weight: Approximately 438 g per set
• Design: Closed-back scoop wrapping behind elbow for enhanced support
• Pads: Textured neoprene for superior grip and comfort
• Adjustability: Multiple mounting holes and slotted bolt holes
• Hardware Included: Compatible with most aerobars; includes M5 and M6 bolts

Design Benefits

1. Ergonomic Support: The closed-back design increases contact area and arm wrap, keeping you locked in and reducing upper-body fatigue over long rides.:contentReference[oaicite:2]{index=2}
2. Secure Grip & Comfort: Textured neoprene pads deliver both cushioning and stability during intense efforts.:contentReference[oaicite:3]{index=3}
3. Versatile Adjustability: A range of mounting positions ensures compatibility with diverse cockpit setups.:contentReference[oaicite:4]{index=4}
4. Lightweight & Durable: ThermoPlast™ construction provides robustness without excess weight.:contentReference[oaicite:5]{index=5}
5. Commit to Aero Position: Closed-back cups serve as a physical stop—helping you resist sliding back into less efficient positions once set.:contentReference[oaicite:6]{index=6}

Final Take

The TriRig Signature Closed Back Arm Cups are among the most impactful comfort upgrades for time-trial or triathlon setups. Their robust, adjustable build and ergonomic design help you maintain an aero position longer—translating into more efficient, faster rides.