When 2-wheel Drive’s money is at stake and it’s time for a new scoot, bikes such as Harley-Davidson’s limited-edition Screamin’ Eagle Road Glide aren’t even in the running. Call it ...

Let's get the price out of the way. The Screamin' Eagle Stage IV Performance Crate Engine costs about $8,000. You also might end up shelling out more should you choose to get it retrofitted.