ESR436 is a high quality regulator/rectifier that replaces the OEM regulator on Honda CBR929 models. Our ESR436 offers superior performance by utilizing our latest generation of power circuit which is installed in a highly efficient heat sink. ESR436 offers a super stable battery voltage across the RPM range and will run much cooler than the OEM unit due to the improved heat sink design. All in all: a large improvement over the stock unit. ElectroSport supplies ESR436 with a full one year warranty.