Hi Guys. I was riding on the interstate and was in to much of a hurry to get home. I got up to 80 when the handlebars started moving right and left. At 85 it was real violent. Slowed down to 75 and it was ok. Got home and checked tire pressures and they were right on. Tires look a little old but very good thread left on them. The bars seamed like the ends were coming toward me 2 inches. Any ideas???