Piston Ø39mm bi-segments AIRSAL for kit 50cc MBK 51 / motobecane av10

Here is the replacement piston for the air-cooled aluminum kit AIRSAL 50cc Ø39mm on MBK 51 / engine motobecane av10. This piston is of good quality, it comes complete with the segments, the piston pin and the piston clips. Alas, there is no letter of attrition.