Re: If it's got a chain drive, Isn't it a motorcycle?
The big thing, I worked on, was a good muffler system. The quieter they are the less attention you attract. The less smoke you put out the less attention you attract. That's why I use a four stroke engine on mine and designed a very quiet muffler to go over the spark arrestor. People are funny, if it's a Harley rattling your windows, they put up with it. But if sounds like a leaf blower and it keeps passing by, your most likely to get stopped.