OR...maybe even a THREE cylinder! As in Jim Fueling's W3 he made a few of before he died a few years ago. He'd show these babies off at some of the west coast M/C shows, and when he'd fire 'em up, they made noises I'd never quite heard before.

http://www.totalmotorcycle.com/photos/prototype-spy-concept/W3-Feuling.htm

Yep! Just like a good Single Malt Scotch, you might call me "an acquired taste" TOO.(among the many OTHER things you may care to call me, of course)