Will fit other motorcycle brands which also use the air-cooled Franco Morini S6 E engine (engines with cast iron cylinders (not aluminium) and where the carb mounts to the crankcases (not the cylinder).

Please note: models with aluminium cylinders are known as S6 S models and the liquid cooled models known as S6 C, both use a completely different piston to this model, which we have in our ebay shop.

IMPORTANT : Check picture 2 for the S6E dimension of deck height against your piston, should be 22mm 

(if yours measures 18mm then yours is a S6S or C engine and this piston WILL NOT fit)

We can also supply for these engines : Gasket Sets, Small End Bearings, Drive Shaft (sprocket) Oil Seal, Japanese Koyo Crankshaft Main Bearings, Countershaft Bearings, Pistons £POA

PLEASE NOTE: we can also supply piston oversizes in 39.50mm or 40.00mm, please ask for availability as this advert is for the standard 39mm piston.