ESG615 is a high quality stator that replaces the OEM stator in the Yamaha X-Max and X-City models. ElectroSport manufactures the ESG615 stator starting with a brand new stator core made of special material that has very low magnetic resistance. We use the highest grade copper wire for the windings which are installed using computer controlled winding machines for optimum results. Our lead wires are of very high quality and we chose a type that is abrasion and heat resistant. The rubber seals and connectors are an exact match for the original stator making this ESG615 a plug in replacement. With the top notch materials and design features chosen our ESG615 stator offers superior performance and reliability. Like all stators manufactured by ElectroSport this ESG615 stator also comes with a full one year warranty.