Cylinder Polini Sport 70cc CPI AC pin 10mm

The 70cc Sport is a grey cast iron cylinder with excellent torque and, above all, ensures a flawless start.

It is ideal for daily use.
Its power is the result of the increased displacement, which guarantees good results. The standard carburettor can continue to be used.

We recommend a main jet between 5% and 10% larger (it's worth it!) and a Bosch W3CC spark plug. For CPI engines with a 10mm pin