Cylinder head Polini Racing for Polini 133ccm Vespa V50, ET3, SS50, SS90
With the appearance of the new Polini Evolution cylinder, the well-known Polini gray cast iron cylinder has also received an upgrade and from now on has the addition “Racing” in the name. A really massive cylinder head with an enlarged cooling surface, CNC machined combustion chamber and a copper gasket. Due to the greatly increased material thickness and the use of a head gasket as in the Evolution [...]
