ESR623 is a high quality regulator/rectifier which replaces the OEM regulator on the Honda CBF1000 from 2005 through 2009. Our ESR623 uses the latest developments in regulator circuit design and incorporates a very efficient heat sink which dissipates the generated heat quickly. We specify only the highest quality components for the internal power circuits and the result is a regulator/rectifier that is superior to the OEM part it replaces. The result is a stable output voltage across the RPM range enabling the battery to charge with minimal heat generation. Like all regulator/rectifiers manufactured by ElectroSport this ESR623 comes with a full one year warranty.