SportRack Platform Style Trailer Hitch Receiver Bicycle Carriers and Bike Racks include many of the same quality features as expensive brand names at more affordable price points. SportRack Platform Style Bike Racks can carry up to 4 bicycles - depending on the model you choose. SportRack Platform Hitch Bicycle Carriers hold your bike by the wheels and frame for a rock solid hold. SportRack Crest Platform Style Racks are the most popular SportRack models. Some SportRack Bike Racks include locks and keys for locking your bikes to the rack and your rack to your vehicle. If you're operating on a tight budget, locking upgrades are always available later from RackWarehouse.com.