Signature Open Back Arm Cups Nimbus Improves off-center stability by increasing

Improves off-center stability by increasing racket inertia at 3 o' clock & 9 o'clock on the racket hoop without changing balance or adding weight

the new Hi-Sling Fiber gives you easy access to high and distant clears

or vice versa

the XX Eagle Transmission Cassette and derailleur contact directly

delivering unmatched innovation drawn directly from our pro-level bikes

Signature Open Back Arm Cups Nimbus Improves off-center stability by increasingSignature Open Back Arm Cups: The Ultimate Aero Comfort Upgrade The TriRig Signature Open Back Arm Cups are designed for comfort and performance. Crafted from our ultra strong, lightweight ThermoPlast material, these arm cups offer superior strength and durability at our most affordable price point ever. Triathletes and time trial cyclists who use our Signature Open Back Arm Cups stay comfortable in the aero position longer due to the textured