A system comprising: an energy storage device comprising at least one battery and configured to store power for a vehicle ; a rear drive configured to transfer power between the energy storage device and the vehicle ; a power conversion controller configured to regulate power flow between the energy storage device and the rear drive ; an input device configured to receive input from a user and configured to translate the input into instructions for the power conversion controller; and at least one swing arm having a coupling assembly and configured to transfer power between the rear drive and a wheel-side coupling , wherein the wheel-side coupling and coupling assembly are configured to transfer power between the at least one swing arm and a vehicle wheel and are configured to allow the at least one swing arm to be decoupled from the vehicle , wherein the rear drive comprises a drive mounting assembly configured to mount the rear drive to the vehicle , wherein the rear drive is configured to transfer power between the energy storage device and the at least one swing arm , and wherein the rear drive further comprises: a chassis configured to provide support for the rear drive ; an energy conversion device configured to convert stored electrical energy from the energy storage device into mechanical energy; a differential drive configured to transfer power between the energy conversion device and one or more driveshafts ; one or more driveshafts configured to transfer power between the differential drive and an axle assembly; and one or more axle assemblies configured to transfer power between a driveshaft and the at least one swing arm . an energy storage device comprising at least one battery and configured to store power for a vehicle ; a rear drive configured to transfer power between the energy storage device and the vehicle ; a power conversion controller configured to regulate power flow between the energy storage device and the rear drive ; an input device configured to receive input from a user and configured to translate the input into instructions for the power conversion controller; and at least one swing arm having a coupling assembly and configured to transfer power between the rear drive and a wheel-side coupling , wherein the wheel-side coupling and coupling assembly are configured to transfer power between the at least one swing arm and a vehicle wheel and are configured to allow the at least one swing arm to be decoupled from the vehicle , wherein the rear drive comprises a drive mounting assembly configured to mount the rear drive to the vehicle , wherein the rear drive is configured to transfer power between the energy storage device and the at least one swing arm , and wherein the rear drive further comprises: a chassis configured to provide support for the rear drive ; an energy conversion device configured to convert stored electrical energy from the energy storage device into mechanical energy; a differential drive configured to transfer power between the energy conversion device and one or more driveshafts ; one or more driveshafts configured to transfer power between the differential drive and an axle assembly; and one or more axle assemblies configured to transfer power between a driveshaft and the at least one swing arm . a chassis configured to provide support for the rear drive ; an energy conversion device configured to convert stored electrical energy from the energy storage device into mechanical energy; a differential drive configured to transfer power between the energy conversion device and one or more driveshafts ; one or more driveshafts configured to transfer power between the differential drive and an axle assembly; and one or more axle assemblies configured to transfer power between a driveshaft and the at least one swing arm . <EOS>