Greetings all, Thought I would start a thread 'bout my new project. I have built quite a few motorcycles in the past, though have never attempted a Motorized Bicycle before. So, Just the other day I was lurking around a little scrapyard near my workplace, when I stumbled upon an old push lawnmower. The motor was still complete but not running. Minutes later, found a really old BMX, Looks like a child's bike, but I just thought that'd be sweet. With some cleaning and tuning got the engine running, runs like a dream, and has quite the rumble. Planning to mount the engine on top of the rear wheel, The rims & tyres in this pic are just temporary, needed something to put the bike on. Based my design on the vertical shaft drive like the ones built by vernon. With some small changes to the manner in which the drive roller engages the tyre sidewall. Using the rear brake lever and cable, from a small 50cc quad bike, to disengage, and some heavy springs to engage the motor. I know that a vertical shaft engine is not exactly the best option, but the engine and bike were free. (My budget is basically $0,00, with the exception of tyres) Any tips or tricks of trade are welcome!