An esteemed forum member in the UK (Thanks Steve ) was kind enough to pick me up a NOS MuZ rear sidestand. I think it's for the larger ETZ models but am not sure. But it does fit the Silver Star frame perfectly and imagine it will fit alll the MZ 500 models. It takes the place of the rear wheel spacer and is much more solid than the gimpy original POS. For those interested, the MZ part number is 30 25 077. A worthy investment IMHO.