Application: BMW Airhead ModelsMake/Model: R50, R60, R75, R80, R90, R100Model Years: 1969 - 1980 Manufacturer #: 21 21 1 231 666Note: This clutch ring has the correct spacing so the original 4mm thick spacers BMW # 21 21 0 070 511 are not used, making the installation much simpler.(See APPLICATION TABLE tab BELOW to verify vehicle fitment)Brand: BMW