They use different riser plates and bars on the older generation 500R. the fork is 36mm (I believe) on the old 500's, and is 37mm on the new ones.71_307 said:not to bring up an old thread.. im taking the handle bar set up on later ex500/500r is different then the first gen bikes 87-93?? cuz im not sure ho you would install clip ons on my bike ( 1990)?? like do they make clip ons for a specific bike or are they jsut generic in design and can fit any bike that has the right size forks??