I read many many reviews of this product before purchasing it. I actually read on one site where some reviews stated they would take the cupping out of the tires. I waited until my tires were cupping (Not that long.) After installing the Centramatic balancer, the cupping did come out of both tires. I purchased new tires and I currently have at least twenty thousand miles on the front tire, Dunlop elite 3(honda shop forget to write milage down when tires installed) Later service milage is used. The back tire got an unwanted visit from a nail had to be replaced. I am getting ready to go on a trip and will replace the front tire before going just to be sure. I believe it should have 2 or 3 thousand miles tread life on it; however, I will it replace before the trip to be safe.
The bike feels more solid in the corners. I did not see a noticable change in widny riding like some others stated. This product will more than pay for itself just in extra tread life of the tires. 100 percent yes vote from me!!!