Dunno why everybody makes such a big deal over tires, they all work fine until they get some road crown wear on the front to make bike begin to wobble at speed. That's if bike is a DOHC, it's been a known issue with bikes wobbling with less than 5K miles on new tires if ridden hard. When the tires get older watch your front, you can clearly see the lopsided wear begin that causes all the trouble. It has nothing to do with bike frame being straight aligned. All the bike magazine testers mentioned the problem in varying amounts.