Mine work great! Minimum wieght for balancing, no vibration at 130. But I'll admit, I got 'lucky'. They are, after all, little more than a canvas bag with rubber on the outside. They DON'T have the additives of a modern tire to keep the dry cracking from happening on the sidewall, which means they have a short shelf life compared to modern tires. They DO flat spot. So WHY do I run them? Great traction just might save my life, and probably all ready has. Plus, they look cool. Certainly not for everyone and a real pain in the butt when you get a bad set (which seems to happen a fair amount of the time). "Racing" tires, use one season,throw away, that pretty well sums up the GY's.
