I have an attic pain cave with ~45 degree pitched ceilings. It won’t work to mount some hooks and have my bikes hang straight down.

I know there are some good wall mount systems where your wheels rest in a base, the bike leans somewhat, and then the frame or pedals secure it. Herbert had something like this when he did an article on his pain cave a while back.

The bike would be at a more extreme angle using my slanted ceiling, but it could work.

Anyone have a good brand or solution for this?