Hi Everyone, I have just changed out the rear tire on my 07 vstar 1100 and now have a severe vibration after 50 mph, that gets consistantly worse as speed increases. The recommended replacement tire was installed and balanced by a local bike shop that I trust. it is the first tire change on this bike, it only has 10,000 miles on the chassis. There was no vibration with the original tire and I have never experienced any problems with this bike until the tire change. Have I put the drive shaft out of phase some how? It went together easily and nothing was forced into place, any recommendations?