Gudgeon piston from Polini, 12x37mm
Suitable for thesee cylinder kits: P.119.0077 / P.119.0078 / P.119.0084 / P.119.0077R / P.125.0004 / P.140.0181 / P.140.0181R / P.140.0183 / P.140.0188
Power transfer of the piston to the connecting rod is done by the gudgeon pin. These are placed in grooves in the inner side of the piston. This groove often has a place for security rings / circlips to hinder the gudgeon pin from wandering outside. These should be replaced whenever the piston is renewed or replaced.
Suitable for thesee cylinder kits: P.119.0077 / P.119.0078 / P.119.0084 / P.119.0077R / P.125.0004 / P.140.0181 / P.140.0181R / P.140.0183 / P.140.0188
Power transfer of the piston to the connecting rod is done by the gudgeon pin. These are placed in grooves in the inner side of the piston. This groove often has a place for security rings / circlips to hinder the gudgeon pin from wandering outside. These should be replaced whenever the piston is renewed or replaced.
