Anyone considering the purchase of new tires should really go to tirerack.com. I'm not trying to push that site, but I've been in a controversy between my tire dealer and Michelin. My tire dealer says my Michelin Hydroedge tires MUST be re-balanced every second rotation and Michelin says that's nonsense. Upon reading some of the posts on tirerack.com, I'm convinced these particular tires need re-balancing frequently whether they are rotated or not. These posts weren't there before I bought the tires. I thought I would be a pioneer and buy a radical-looking tire which was highly-rated at the time, before all the reviews were in. Bad idea. Live and learn.