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 confidenceARM CUPUniversal bolt pattern works across most two-bolt mounting systems.Anatomic shape to securely cradle the arm.Carbon reinforced nylon cup construction.Includes: M6, M5, M4 stainless steel bolt kit.ARM PADProprietary two-part foam injection pad design.Large surface area to disperse pressure.10mm pad thickness.Radiused to match perfectly to 51 arm cup.
