§ Breech polini high compression air Ø40,2mm (decompression possibility) Peugeot 103 / fox / wallaroo

Product out of production here is informative.

Cylinder head POLINI for kits 50cc Polini and other Ø40 to 40,2mm, it can even be mounted on the cylinder / piston origin. This cylinder head has a bedroom semi cap (improved scanning Gas Management has low speed and mid speed), the room is high compression and has a blasted finish (some even as we prefer the polished tapered rooms but this cylinder head is a very good model).

This model has a location decompression, so you should ask or decompression, or a breech plug mandatory. The fins were enlarged for improved cooling and the drawing is semi polygonal. Polin also asked reinforcement bars to avoid curtains plane joints. This cylinder head has a motor numbering location, it is delivered naked jointless.