Hello all, I had some new tires mounted on my new to me 2001 ST1100. The bike had some really old tires on it when purchased and they had hardened and were not safe to ride on. The bike rode fine before getting the new tires mounted. I went with the OEM tires. The local shop said that when he mounted them, the back went on fine with no problems and balanced just fine. He indicated the front tire gave him a little more problems and he had to add some weight to the front to get it to balance. I didn't notice any big issues right after picking it up, but within a 100 miles or so of riding it, I noticed that the front had some head shake when I took my hands off the bars at low speeds, and right at about 35mph it feels like the front end is bouncing up and down. I took it back to them and he took it for a quick ride. He said he didn't feel the head shake, but did feel the bouncing while decelerating. He said he thinks its possibly the front forks that may need to be rebuilt. I think its the extra weight he needed to balance the front tire as it wasn't doing this before the tire change. What do you guys think? Also, he told me to put a few hundred more miles on it and then bring it back for him to look at.