What soren said, it depends on who you ask about the Buel,
I've heard its got a great frame and suspention for cornering and will do all the sport bike tricks. But it lacks motor.
My opinion.. its a an attempt by HD to get a piece of the sporbike market. Folks who buy them want a sportbike, but have an unreasonable fear of Japanese or European bikes. So settle for an inferior machine.
If you go to an HD forum and ask the same question, I'm sure you will be told "It's the best sport bike ever made"
