Piston -METEOR- Vespa 125cc (3 transfer ports) - Vespa PX125, Cosa125 - 53:3mm (4th oversize)

Corresponds 1:1 to the original and is a good and cheap replacement for the original Piaggio part.
Version with upper L-ring. Original used in Vespa PX125 and Cosa.

diameter: Ø=53,3mm (4M)

NOTE: Also fits without problems in the older cylinder with two or three overcurrent channels like Vespa Sprint, Super, TS, GT, GTR etc.