I'm more of a ride it hard and heavy until it falls apart sort of guy. If it were my bike I'd ride it like I stole it and the owner was chasing me. When it fell apart a few days later I'd pull the good pieces off and crush the rest. That being said I wouldn't take it at high rates of speed, just in case the rear wheel decides to fall apart, which it probably will. I do this all the time with wrecked/low end bikes and I have yet to seriously injure myself.