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 30 Day Warranty Description 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. Specifications Name: NGK B6ES Thread: 14 mm Reach: 3/4″ (19 mm) Heat: 6 (medium) Compatibility Vintage Vespa GS Series (VS1-5/VSB) Vintage Vespa GS Series (VS1-5/VSB) Vintage Vespa P and PX Series (VNX/VLX/VSX/T5) Vintage Vespa P and PX Series (VNX/VLX/VSX/T5) Vintage Vespa Rally Series (VSD/VSE) Vintage Vespa Rally Series (VSD/VSE) Vintage Vespa Super Sport 180 (VSC) Vintage Vespa Super Sport 180 (VSC)