cylinder kit Polini aluminum racing Big Evolution 94cc 52mm for Piaggio LC

94cc high-end alu racing Big Evolution cylinder kit. Sharp timing and single-piece manufacture ensure the cylinder head gives high compression and maximum performance. Suitable for Piaggio, Gilera, Aprilia & Derbi Scooter with water-cooled Piaggio 2-stroke engines (LC). It is supplied as a complete kit including cylinder head and necessary mounting hardware. In addition several base gaskets are supplied to better dial in the squish as well as a 13mm little end bearing. Caution! The cylinder kit can only be used in conjunction with the Evolution crankshaft 210.0021. A larger carburettorand a racing exhaust system is recommended. Bore: 52 Material: Aluminium with hard-chromed lining. Diameter of gudgeon pin: 13mm. Stroke: 44mm