Used BMW E70 E71 X5 X6 BMW Rear Mounted Bicycle Carrier 82710443424 - $250 obo (cash and local pickup only)
https://www.shopbmwusa.com/product/1...ICYCLE-CARRIER
This rear carrier does not require a trailer hitch, can transport two bicycles and is designed for attachment to the two towing eye sockets in the rear bumper so no installation kit is required. The carrier can be tilted back, with or without bicycles attached so the tailgate can be opened. Special mounting screws and locks deter theft and the bike holder is lockable for additional security. A foldaway design allows storage of the empty carrier in the luggage compartment. Bicycles are easy to load because they only have to be lifted about 12 inches