- 86mm (3 3/8 inch) depth past center of hitch pin hole to insert a VelociRAX
- 50mm (2-inch) Class III  hitch with tongue capacity of 227 kg (500 lbs)
** Note - Check factory OEM hitch receivers on newer Subaru CrossTrek and Outback and Ford Ranger as they may lack sufficient depth on the factory hitch receiver.
-RVs/Trailers: need to have a Class III 2-inch hitch receiver with a tongue weight capacity of 500 lbs at a minimum (bumper hitches, extension hitches, and hitches with cantilevered sections allow too much hitch movement and are inadequate). One item to check is if a ladder could possibly interfere with the rack. Trailers and RVs produce extreme forces on racks and bikes. Take extra care to strap tight and use rubber bands (or bike tubes cut in ~1 inch sections) placed on the brake levers to decrease natural motion between bike and rack and fully secure the VelociRAX's built-in anti-rattle system.