Polini twin layer air filter element insert for Aprilia SR50 mopeds.

These Polini filters are made up from two sponge layers:, the blue finer layer has a porosity of 60PP and the black layer has a porosity of 30PP. Also the external of surface is waved which offers a greater entrance of air flow and helps to retain more dirt particles.

You may need to adjust the main jetting.

*Please compare with your old filter.

Polini 203.0123