Part of the appeal of the house when we bought it, was that the weird "L" shape of the room left us with the perfect amount of useless space to park a bike. The TZ is probably going to end up in the dining room when X is done with it.
We hung most of X's crashed helmets, the only unscathed ones are the few I donated from my experiments from trying to fit something over my wool sweater hair. There's also one we had to take down... I couldn't handle looking at the one he had "the crash" in. There's an identical one in better shape up there, and he put the bad one on a shelf in his office.