This is a very stout moto/bicycle rack made to specifically fit inside and bolt down to a Ford F150 or bolt down to a camper van or trailer setup using your own mounting points. To mount to the F150, simply use the bed mounting bolts. This is a handmade rack system made by Bolt It On located in the USA. It is high quality, incredibly stout, and can fit under your bed cover.
Crossbar measures 62-3/4” wide. Tons of mounting points and adjustability to make it work for your setup.
Mounted it in my F150 and only used it once before selling the truck. Has three different wheel chocks: an angled moto front wheel/bicycle for running your bike angled in the bed (maybe able to close the tailgate); an angled rear wheel moto chock; and a 90 degree front wheel moto/bicycle.
Almost $1000 spent on this setup. Yours for half. Made to bolt down in a F150 but could be retrofitted for your specific use if so chosen.