My son and I built our first motorized bike. We found a nice Schwinn Collegiate for $20 at a rummage sale. We choose this frame because it was really easy to fit a motor on it. Everything bolted up nicely. BUT... after riding it half the summer I think we can do better. The Collegiate is uncomfortable, heavy, and I don't like those skinny tires at all. Scares the **** out of me on gravel. So here's the Schwinn.