I changed out the "buck horn" handlebars on my 2000 softtail springer(20,000miles) with Wild One dragster type bars with integrated risers. Lots of work over the winter, but it looks good. I don't know if its coincidence with the new bars, but the engine vibrates the new bars, mirrors and hand grips etc... At any speed when I clutch and take the load off the engine their is no vibration. What the heck should I be looking for? Looking to enjoy my ride again.