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.