re: which is the best kit?
Hi, first time on this site. I also ride a motorized bike. The engine that I use is a Bumble Bee Bolt -On friction wheel drive kit. I love it . Very reliable not much to go wrong. Comes completely built,onlytakes a few minutes to even install. I have heard how some engines are difficult to put together and very hard to get parts.Not my engine,built here in the good ole USA .I have had this engine for over a year now. They have a web site bumblebeebolton.com Check it out . They also have great online instructions.Ride Safe.