so if I have like 200$ to spend on a road/cyclocross/hybrid, what sort of used bike should I shoot for. I want a good bike that looks trashy so it won't get stolen. There is a bunch of 1-2" gravel chunks on the way to school, would that pose a problem. I have noticed that my mountain bike is heavy, gets slowed down by wind, and is cumbersome. They do feel so much more sturdier, perhaps I just need to ween myself off them Everyone else says so.