4 Bike S-645 Premier Spare Tyre Hitch CarrierThe Allen S 645 Premier is a hitch rack for transporting up to four bikes on vehicles with externally mounted spare tyres. A tie down system individually secures and protects both your bikes and your car, with folding carry arm design that allows the racks arms to quickly drop out of the way when not in use. Features Specifically designed for vehicles with externally mounted spare tires. Extended hitch arm designed to clear rear mounted vehicle spare