Ok maybe I have bumped my head one to many times or it's just from the lack of finding cool bikes lately but an idea popped into my mind the other night. I call it the Unocycle. The idea is to use 2 rears off of 2 scrap frames and mate them together at the dropouts with the single wheel in the middle with the rider either peddling from the back bottom bearing and their weight shifted forward to balance over the wheel or peddling from the front with their weight over the tire. I'm sure I can build it but not sure if it would be rideable. Heres where I'm at so far.