For R80/100 Models from 1980 (electronic ignition).
For R50/5, R60/5, R75/5, R60/6, R75/6, R90/6, R90S, R60/7, R75/7, R80/7, R100/7, R100S, R100RS, R100RT, R100CS, R80G/S, R80ST, R80RT, R80GS, R100GS, R100PD, R100R, R80Basic
High quality over-size piston in 94.46 mm for all R100 models up to September 1980 produced with recent technical expertise.
MADE IN GERMANY!!!