Have you had anyone else ride the bike and confirm what you're feeling? I know you replaced it but I've found most the time a wheel balance and new chain fixes 99% of vibrations. The fancy tire balancers that can tell you if your out of round is a big deal I've heard called road force meters, try calling garages around you to see if they can do your tire? Another thought that you've probably done but try different bar ends? or put a rubber dampener (rubber washer kinda thing)in between them and the bar?