cylinder kit Polini aluminum racing Big Evolution 94cc 52mm 13mm piston pin for Minarelli horizontal LC 166.0111

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 scooters with water-cooled Minarelli 2-stroke horizontal engines (LC). It is supplied as a complete kit including cylinder head and necessary mounting hardware. In addition are several base gaskets better dial in the squish and a 12 mm little end bearing. Caution! The cylinder kit can only be used in conjunction with the Polini long-stroke crankshaft 210.0023. A larger carburettorand a racing exhaust system is recommended. Bore: 52 Material: Aluminium with hard-chromed lining. Diameter of gudgeon pin: 13mm. Stroke: 44mm