Hello. I need some advice please. I had both tires replaced by the Honda dealer about 1,000 miles ago. They put on Bridgestone Hoop tires, new valve stems, and balanced the wheels. Since then, I have a serious problem with the whole bike vibrating on only certain freeways at high speed (55-70mph). On some roads the bike rides perfectly, and on other roads the ride is so rough that it feels like I am going to be thrown off the bike. The rough ride is directly related to the road service because when I come to different type of road the ride smooths out temporally.
Is there anything that the dealer did with the tires or the balancing that could cause these problems? Why would the bike only vibrate on some roads and not others? Of course the dealer denies any responsibility. The bike is a 2002 with 10,000 miles. Thanks for your suggestions