Cylinder Kit AC Polini For Race 70cc 12mm Piaggio

As is traditionally the case with Polini aluminum cylinders, this cylinder was manufactured by the excellent Gilardoni foundry, the largest in Italy. In addition to its very good manufacturing quality, this Polini Alu 70cc Piaggio cylinder head assembly is also quite efficient for a 70cc “Sport” range. Even though it is designed for intensive use, it is still much more torquey and more powerful than the original cylinder, especially in the mid and high revs. With the correct configuration (17.5mm/21mm carburetor and “Sport” exhaust) it can develop around 10/11 hp, with a top speed also increased because at a higher maximum engine speed than the original.


- 70cc aluminum cylinder diam. 47.6mm,
- 6 transfers,
- Single-ring piston,
- High compression cylinder head,
- Kit of seals required for assembly.

As traditionally for Polini aluminum cylinders, this cylinder was manufactured by the excellent Gilardoni foundry, the largest in Italy. In addition to its very good manufacturing quality, this Polini Alu 70cc Piaggio cylinder head assembly is also quite efficient for 70cc “Sport” ranges. Even though it is designed for intensive use, it is still much more torquey and more powerful than the original cylinder, especially in the mid and high revs. With the appropriate configuration (17.5mm/21mm carburetor and “Sport” exhaust) it can develop approximately 10/11 hp, with a top speed also increased because at a maximum engine speed higher than the original.

- 70cc aluminum cylinder diam. 47.6mm,
- 6 transfers,
- Single-segment piston,
- High compression cylinder head,
- Kit of joints required for assembly.