Sorry if this has ben asked and answered, I searched but didn't find what I was looking for. I am in the process of converting my Cargo Van (Ford E150) into a camping vehicle and am looking for bike racks. Right now it doesn't have a hitch, but it does have a step bumper with a trailer ball hole. I looked online and it looks like you can get racks that will mount to the hole with a bolt or you can use the trailer ball to mount them. Problem is they have no reviews and are rather sparse on any specs. I was wondering if anyone here used one of these and how they liked them? In particular I am looking for something lockable and sturdy to fit two bikes, but more is OK. Thanks!