SportRack SR4883RP Upshift 2 Bike Roof Mount Upright Carrier Carries 2 bikes with one complete system Wheel tray holds bike securely during transit Adjustable arm holds the down tube of the bike for greater stability Locks included to secure the bike to the carrier Fits on SportRack Roof Rack Systems, square, round and most factory roof racks Please check the fit for your vehicle in the fit guide located in the Product Details area.