More power to propel a Vespa Primavera is easily attainable if you increase the size of the engine, which is exactly what this kit from Polini does. Capacity increases from 125 to 135cc thanks to a new 58mm bore cast iron cylinder and a matching piston which is gravity cast in alloy, with twin chromed iron rings. To extract the maximum number of horses from the refreshed motor Polini recommends fitting a PWK carb and race exhaust system. SRP is £310.
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