OEM derbi revolution stock piston

OEM derbi revolution 50cc stock replacement piston with two 1.5mm rings.

i'm sure this piston could be used in many of the 50cc derbi kits as long as the ring pin is in a good location.

diameter / bore = 39.88mm
wrist pin size = 12mm
distance from top (including crown) to center of wrist pin opening = 26.5mm
total length (not including crown) = 47mm

treatland