Cylinder kit POLINI 130cc cast iron Racing 57mm for Vespa 125 ETS, PK, Primavera 2T, Prima

130cc cast iron racing cylinder kit for 125cc Vespa ETS, PK, Primavera 2-stroke, Primavera ET3 2-stroke and XL maxi-scooters. This racing cylinder achieves a max rpm of 8,100 with a power output of 12.6bhp. Special cylinder head with improved cooling function. Bore: 57 mm (51 mm shaft = 130cc / 54mm/shaft 138cc). Spark plug: Long threaded B9ES