I just purchased a used road bike that had fairly new Hutchinson black kevlar tires on the wheels. The seller said that he just had new tires and new tubes installed. The tires look fairly new, but what is really throwing me is that there are white tufts of cotten threads(?) coming out of the sides of both tires. I can't say that I have ever seen this on a tire, except when they were worn out. Any thoughts from anyone out there ? Are these defective tires that need to be replaced ASAP ? I recently saw an ad for Bike Nashbar where they had Hutchinson tires on sale. Customer comments were extremely negative.