Originally Posted by Ray9

Ok, so a problen developed. The tolerances on the bike are close and the rim had some runout. This meant that the tire had a high point. The high point was hitting hardware virtically because of the out-of-round nature of the tire and rim. So, it was not spinning freely as it should have been. The bike shop said I had to go back to 25mm tires. I took a nap and dreamed I was back work engineering solutions for mechanical problems. I woke up and turned the bike upside down and measured the runout. It was .025. I took the tires off and cut some strips of tape that had a width of .010. I put three strips of tape into the into the axle fitting of each wheel which moved the entire wheel down .030. Problem solved. In other words, I shimmed the wheel to eliminate the rubbing. Should the bike shop have known this? Probably. They had some kid as a mechanic and I told him how I fixed it.