Quickly and easily adds two bike capacity to the 2" T2 Pro.Frame-free ratcheting arm secures bikes quickly without frame contactFits 20-29" wheels and up to 5" tires without adapters making it ideal for carbon frames mountain downhill or fat bikesIntegrated cable lock and lock knob secures bikes to the rack and the rack to the receiverGenerous spacing between bike mounts with the ability to adjust side to side to eliminate bike interferenceCompatible with 2" hitch only