**FILE**Brad Lano of Minneapolis, Minn., plugs his ears as a Harley Davidson motorcycle is dyno tuned at a local dealership in Milwaukee in this Aug. 26, 2003 file photo. Cities from New York to Denver are giving motorcyclists the silent treatment. And that worries riders rights groups, which fear that a wave of ordinances aimed at muffling Harley-Davidsons, hushing Hondas and stifling Suzukis will create a confusing patchwork of laws that motorcyclists won't be able to navigate. (AP Photo/Morry Gash, file)