Piston 1st oversize for Chinese CJ 750 Chang Jiang OHV engines

First oversize piston (+0.25mm) for Chinese Chang Jiang 750 cc OHV engines
Not suitable for side valve engines!!!
ATTENTION: Different ring notches! Her: 1,75mm, 1,75mm, oilring: 3mm

Matching rings: S5210-25
Matching piston pin: S4103