... Weight: 10.5kg Warranty: 1 Year Technical information for 48V 500W electric bike convertion kit Kit NameDescriptionRear drive motorDiameter 100mm, 6 kg ... and spokesAluminum rim, with 12g or 13g spokesController12 MOSFETs, for 48V 500W, with regenerative charging, speed-limited or not by hands ... rightDisc Brake160 holes or 140 holes option disc tray 48v 500w electric bike kit with dc motor 48 volt