ok obviously bikes are cheaper as the weather gets cooler... but when do they seem to actually hit rock bottom.

Ive been debating on getting a sport bike for while and then I was riding my friends R1 yesterday and now im positive I want something along those lines.

Seems to be a few good deals on craigslist right now, but Im sure the deals are going to get better... I just dont know when.

Any tips or suggestions I should be aware of when looking at used bikes?