Available in many different styles an aftermarket or factory installed trailer hitch is required for hitch mounted racks. These racks can normally be used with Class 1 and 2 hitches with 1 1/4" or Class 3 hitches with a 2" receiver or both. Adapters are available if you have a hitch already installed on your vehicle that doesn't match the rack you prefer. Please note manufacturers don't always build all 3 hitch classes for every vehicle. If your car or truck isn't listed for a particular hitch class search a weight class higher or lower. And Please...don't hesitate to contact us if you have any difficulties finding a hitch and rack combination for your car, truck or SUV.