Polini Thermal Group Kit D.47 For Bee 50 FL2 FL3 Vespa 2T 50 Special PK XL
Warning: use candle at a long pace
Cast iron cylinder

Polini the famous piof the vespa 50 kits with Ø47 reaming.
The main feature is the new shell-fused head. It has a modern design
of the dome that makes it very pirobust ù allowing you to have a band of squish
perfectly and to place the thread candle along centrally with respect to the
burst. The alettatura is increased to have the best dispersion to the heat and the
seal of the head is produced in silicone steel (not present on the Vespa
originale) to maintain maximum tightness to the compression between the head and
cylinder.
The revamped kit increases quality and improves overall performance.