Brainstorm: A ring that can suction to the wall
A hook on the cieling so you can store the bike on the ceiling
A heavy concrete block with a ring on it
A heavy concrete block with a ring on it
Criteria: Easy to assemble, Stores a bike, Small
Constraints: No permanent damage, Has to be small
Sketches:
Approach: I decided to use the concrete block idea because it is very secure
Finished product: