I'm mad bro
Join Date: Aug 2003
Sportbike: butter churn
Years Riding: Lots
How you found us: Googled "bullshit artists"
its a bit of a crapshoot either way. I don't know whats out there new for 300, and used bikes can be tough if you're unfamiliar. If it were me I'd look for a single speed rigid (no suspension) or hardtail (front suspension only) mountain bike. Gears and suspension add complexity, likelihood of failure, and cost. Look for used but you could find a deal on something new if you stick to bikes with minimal components. I'd avoid that craigslist bike for the reasons above.
Ask me how to get a free kick in the teeth!