Originally Posted by
am8117
Call me silly but how does the bike above stays upright?
The back wheel is leaning against the bump-out in the wall
It's true that some solutions are either expensive or... less aesthetically pleasing.
You could probably wrap a stiff handlebar tape over the conical portion, with additional wraps or pieces that build it up evenly. Or use duct tape (or gaffer tape, doesn't leave a sticky residue) to build it up. If you need a solid surface, you could try cutting a short piece of PVC pipe and then cut a chunk out along its length so it has some flexibility to better clamp around the bar and tape.