Wow, I first noticed the whole bicycle engine thing while browsing on ebay. Thought about it for about 25 minutes and purchased the kit from Kings about a month ago. I attached it to a brand new Schwinn Del Mar and instantly liked it and hated it at the same time. I was about to give up until I found this site and joined up. Within hours, I had all the answers to my problems and my bike is running smooth. Thanks. But, that is not what has me staying up late. What does is the enginuity of the folks here. That pusher bike and the other bikes I see. WOW! I keep thinking of other ways to power a bicycle. I keep thinking of ways to build my own "Pusher" trailor. I don't even know how to weld but thanks to one of you here, I now know that I can spend about 90 bucks and buy a cheap welder at Harbor Freight and begin practicing. I know where to buy berrings and throttles and whatever I would need. So thanks guys! Thank you for the bags under my eyes but moreover, for the ideas!