Polini 70 Evolution cylinder kit for Minarelli vertical 12 mm pin 166.0074/12E

Polini presents the new 70 Evolution cylinder kit in the version with a 12 mm piston pin, designed for vertical 2-stroke Minarelli engines. The 70cc cast iron cylinder has been completely redesigned with exclusive technical solutions to offer superior power, torque, and responsiveness.

The kit includes:

70cc cast iron cylinder with integrated reed valve seat and two transfer ports

4-petal reed valve included for faster and more efficient flow

Flow guide between manifold and reed valve to reduce turbulence

360° rotatable intake manifold, compatible with Polini CP carburetors from 17 to 24 mm

Racing cylinder head with copper gasket

Double ring piston with 12 mm piston pin

0.2 mm and 0.3 mm base gaskets included

Polini code: 166.0074/12E

Performance:

In its basic configuration, the kit develops up to 14 real HP, with full and constant power delivery. A clear improvement compared to traditional 70cc cylinders.

Tips for optimal configuration:

Polini CP 19–24 mm carburetor

Polini For Race or Scooter Team exhaust

Polini High-Speed transmission