Your entire upper body is supported by the aerobar arm cups. This crucial contact point must provide comfort and stability to ensure rider control and confidence.
ARM CUP GEOMETRY
Compatible brands include, but are not limited to...
* Premier Tactical and Zipp products require a longer M5 bolt than provided. Zipp 20mm button head screw. Premier Tactical - varies depending on spacer height used.
* Giant Trinity bicycles require a shorter bolt than provided. 10mm button head screw.