Hi. My name is Jerry Assburger and I am an incurable tinkerer. I have been putting small engines on just about anything with (usually) weird results, but it's always been fun. Back in 2004, one of my projects was powering my poor MTN bike with just about anything BUT pedal-power. It started with a weed-wacker motor, (Unreliable), then electric, using a car battery and a heater-motor from a Cadillac. (Good for silently tooling around the neighborhood at jogging speed), and then finally mounting a B/S 3hp and a B/S 5hp engine onto a rear rack that I welded on. It was a deathtrap that could reach 38mph and sort of use the 5 gears of the rear shifter, and ended up being my transportation to and from work for about a month when my car broke down and I was waiting on a vital part. I guess where I going with this is, ever since these 80cc bike kits have come out I've wanted to do one, but they used to e a lot more expensive. I bit the bullet about a moth ago and got a kit for $105 on Ebay, and am now waiting to receive a WalBox bike I ordered for $99. This is going to be fun, and I have your forum to thank for pushing me "over the edge" !! Pictured is my poor MTB project with the 5hp, which provided almost nothing but more vibrations than the 3hp, which was the motor of choice.