Here is the correct "long-reach" NGK B6ES spark plug for vintage Vespa Scooters like the Rally and the Super Sport. It will also work on those classic and very collectable Italian-made Lambretta models. Not all Vespas from back in the day used the same size plugs, so please refer to our Compatibility tab for a correct list of compatible Vespa models. Name: NGK B6ES Thread: 14 mm Reach: 3/4" (19 mm) Heat: 6 (medium) ![]() | |