- 50mm (2") Class III hitch (tow bar) with tongue capacity of 227 kg (500 lbs)
- 86mm (3 3/8 inch) depth past center of hitch pin hole to insert a VelociRAX
-Fixed tow balls are NOT compatible with VelociRAX hitch racks
- RVs/Trailers: you will need to have a Class III 50mm (2 inch) hitch receiver (tow bar) with a tongue weight capacity of 227 kg (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 ~ 25mm (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.