Signature Open Back Arm Cups + Speed Concept Hardware Chain Whips Shifting is as easy as

Shifting is as easy as ever: one paddle to go to an easier gear

UV-protecting and anti-fog lenses

and M-type mounts

SHIMANO 105 will continue to motivate and inspire more riders than ever to go after greater challenges

with cushion grips for comfort

Signature Open Back Arm Cups + Speed Concept Hardware Chain Whips Shifting is as easy asSignature 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