Piston DOPPLER S1F bi-axis segment 40mm 10mm kit 50cc cast iron on minarelli vertical and horizontal (booster rocket, nitro ...)

Here is the spare piston kit for cast iron DOPPLER S1F 50cc Ø40mm on minarelli vertical booster and nitro minarelli horizontal ... This piston is of good quality, has side oilers and an opening on the rear skirt for a better scan. It comes complete with two chrome rings, the axis of Ø10mm piston and piston type G. clips Alas there is no wear letter, delivered complete as presented.