Another crazy contraption im creating late 60's schwinn varsity bike plus late 50's briggs and stratton engine. Really simple what im building. I will be gearing for about 35 miles an hour not so sure thats achevable but if not i can regear the jack shaft. Ive yet to add the jack shaft/any gears and what not but it should be soon ish.. well ill let the pics to the explaning.