This is the throttlemeister throttle lock assembly. I don't call it a cruise control really. My FJR has a real cruise control which works better, but that's a whole different setup from the factory. Throttlemeister works by adding resistance to the throttle assembly and holding the throttle in one position so you can relax your grip and take your hand off the bars if desired. It helps on long rides. You can always manually close the throttle quickly if needed. Mark