Most of our hitch racks will work on either 2" or 1.125" receivers by removing the factory installed 2" adapter.
Other Yakima bike racks are built only for 2" receivers and cannot be adapted to 1.125"receivers.
This page provides information on our hitch racks including which one will fit 1.125" receivers.
IIf you have further questions please contact us here, or by phone at 888-925-4621 during business hours.