I have had an 05 400 for the past several years and just picked up a K11 and I am happy with the changes and the performance of the bike with one exception, being the clutch, which feels completely different from the 05. Under heavy acceleration from standing start it feel like it is slipping up to about 10 MPH and then it grabs. It also does not release from the drive line until the bike slows to about the same speed which would be a plus for mountain riding. I also feel like it could be slipping at lower cursing speed, But the previous owner had a GIVI windshield installed and I am not sure if it from unstable air on the windshield. Does anyone have any information on any similar clutch performace.