I'm in the process of converting my 1959 Zundapp Bella 154 to electric, it originally had a 150CC 2 stroke that was pretty anemic. 7.2HP at 4700 RPM and 8.82 ft/lbs of torque at 3350 RPM. I'm close to 200 lbs and the bike has a heavy steel frame and steel sheet metal body so it really couldn't...