Blue Line Piston Kit for GY6 150cc engines tuning 1977) — advanced rubber compounding

1977) — advanced rubber compounding for high mileage and excellent cost efficiency

Drive End Thread Length: 14mm

Will not work on other Vespa models

Lower Sliders (outer tube) L: 10

Blue Line Piston Kit for GY6 150cc engines tuning 1977) — advanced rubber compoundingRefresh your top end quickly and easily with this Blue Line Piston Assembly Kit for GY6 150cc engines with a standard bore of 57. 4mm. Specifications: Piston Diameter: 57. 4mm Includes all standard and oil scraper rings Includes wristpin and new wrist pin clips Product is intended as OEM equivalent for listed models. Any misuse, alteration or alternative application is prohibited by law.