The SideWinder will only work on the Yakima Round Cross bars or Thule square bars using the standard round / square bar attachment hardware.
The SideWinder cannot be used with MightyMounts and cannot be used with factory crossbars, Yakima CoreBar, Yakima JetStream or Whispbar Cross bars.
If you have further questions please contact us here, or by phone at 888-925-4621 during business hours.