I took my riding buddies new wr out for a really quick spin before winter. The bike seems really narrow between my legs, and kinda small to me. The particular bike I was riding was almost completely stock, accept for a baffle in the scilencer, and a inline fuel filter. I could't snap the throttle because the thing bogged every time. The throttle response I thought was kinda slow. Other than that, I never really got to try top speed or try out the horse power. All of the problems I stated above can be cured with proper jetting, and maybe some aftermarket reeds. But these are just my opinions. Also my buddy has had to take apart the carb 4 times already because the jets are getting clogged, even with and inline fuel filter. He hasn't got a clue where the dirt is coming in from. I will gladly stick with my KDX until 4 strokes completely take over.
Ben