Signature Open Back Arm Cups + Speed Concept Hardware Chain Whips and M-type mounts

and M-type mounts

Side patches reflect when light hits for added visibility and safety

Front or Rear

with cushion grips for comfort

with patented security cable ensures that the mount remains securely fixed and will not turn downwards

Signature Open Back Arm Cups + Speed Concept Hardware Chain Whips and M-type mountsSignature 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