I am building my second M/B both used the SD Stinger motor. The first was a Schwinn Jaguar and the current one is a Huffy Cranbrook. I am having some snags with the Huffberry build but will continue and get it done. I have decided to build yet another one and want to go with a better combination of bike and motor. I have also decided to use a four stroke motor. This may seem trivial but I don't like the looks of most of the four stroke motors I see. I like a motor to look like a motor and with all the shrouding and painted covers they look like a lawn mower. Do you good folks have a recommendation of a good four stroker that looks like an engine should.