Originally Posted by
cyccommute
The ATOC is made for square profile (old Thule/Yakima) bars.
We switched to the wing aerobars on our Thule rack five years ago. We found an adaptor to allow our ATOC tandem rack to be mounted on the bars. We also bought adaptors to allow our kayak J-racks to fit the aerobars. The wing bars are much quieter than a square bar, and the switch between the bike rack and kayak racks is much easier.