Genuine Stage6 replacement part for the Stage6 Sport Pro MKII and Racing MKII liquid-cooled cylinders (LC) for Piaggio and Minarelli engines.

This air vent plug (also called bleed screw or bleed plug) is fitted into the cylinder head to allow proper venting of the cooling system during installation or maintenance. A small but essential part to ensure reliable cooling performance and prevent air pockets in the cylinder head.