ESC unit class K1, Polini 133ccm Evolution membrane
Polini 133ccm Evolution Membrane From 2014, a unified package is permitted in class 1 of the ESC. The direct-suction Polini Evolution cylinder, modified to the ESC version, serves as the basis for this package. The one-size-fits-all solution with the Polini 133ccm Evolution membrane may only be operated unchanged in class 1 of the ESC and with the exhaust provided for it [...]
