'09 K1200LT. Ok, don't try this at home. I've only had the bike a few weeks and I picked it up from the shop after some warranty work. Sometimes driving I'll take both hands off the bars and stretch them a little. This time I just happen to be going exactly 45 mph. As soon as I took both hands off the bars, the bike almost immediately began to shimmy and shake violently. Had I not grabbed the bars quickly we would have gone down. I've done this hundreds of times before with no problems but I guess this was the first time at exactly 45 mph. I did a test after that at various speeds and she kept straight with no shake at all when I took both hands off. At 45 mph, shake. If I put just 1 finger on the bars with very light pressure at 45 mph, zero shake. I only have a little over 3,000 total miles on the bike and the tires still look good. Any ideas?