Cylinder Polini 80cc Derbi Euro 3 / 4

The high-end range from Polini.

The Alu-Race cylinder comes from Gilardoni, a company well known for excellent quality competition cylinders. Equipped with an ASSO piston and a huge exhaust outlet. The combination of additional Boost-Ports and 5 transfers turns this aluminium cylinder into a true competition machine.

With a piston diameter of 50mm, you get about 80cc and can reach 12,500 rpm to be used with the original stroke crankshaft

The kit does not include a cylinder head, it is installed with the original Derbi one.