Installed balancers along with a set of new Conti Tires on my 2008 Wing. Have vibration between 50 and 60 mph when first installed. Have approxmatley 1000 miles on tires. Some cupping on the front tire the vibration has is some what less than when first installed. Called Centramatic about vibration. They blame it on the front tire not setted good on rim. Back tire is cupped a little but still looks to have good tread life. Keeping a close check on tires still not completely satisfied.