Piston ring set 750cc standard size Sized 82mm, will fit the R65 R75/5 R75/6 R75/7 1969 - 1985
Standard Piston Rings for 650cc and 750cc engines - the three ring set is for one piston only (normally need two sets).
Top of your pistons are stamped 81.965, 81.975, or 81.985 and the diameter is 82mm.
