My 97 ST1100 has proven a great bike. Bike has roughly 53K miles on it currently. The bike is stock without any major mods (stock windscreen has been cut down about 2 inches to adjust for my height (rather, lack thereof). Also, the bike has 1 inches risers. Love the bike, but I do have onee concern, though. When traveling at relatively low speeds if I remove both hands from the handle bars the bike begins to headshake almost immediately. It starts as a mild oscillation and worsens the longer I dare to have my hands off the handlebars. Does not do it as long as at least one hand is one a grip. I've had the bike at it's limits in terms of speed and it is as smooth as can be. Of course I'm not taking even on hand off at 130 plus. At normal highways speeds the bike remains stable with even a very light pressure on either grip. I've not tried taking both hands off the handlebars at highway speeds. Tires are in great condition and have about 3K on them (rear tire even less. Wear is even and no signs of cupping. I typically run between 35-40 pounds (cold) in the front depending on load, outside temps and type of riding I'm going to do on a particular day. Pretty much do the same with the rear tire. Front suspension work was performed on it by a local shop with a good rep at about the 40K mark. Forks show no signs of leakage and no signs of damage having been tweeked. NO signs of tire imbalance or missing wheel weights. Wheel runout appears to be withing specs. I recently read where the ST1300 had a propensity to headshake at higher speeds (about220 and above) I was wondering if other owners have had this issue. If so, what was causing it. Any suggestions?