Glad you got it fixed under warranty! My fix cost me $330. The mechanic said that my head had slightly warped so they machined it down a very small amount. Hopefully they checked to see if yours had warped too. I'm 5'10" 200lbs and I rode about 50/50 freeway/city streets with a 16t front sprocket. If you don't mind me asking what are your riding habbits? I now ride a Vulcan 500 since I plan on making some long dist freeway trips this summer. I really want to keep my GZ, but i just can't justify the insurance/license plates for both