1,One side shaft design, easy for assembly. 2,Applicable from 48V-72v, for electric car ,scooter 3,power 3k~5KW characteristicsOne side shaft mechanics, easy for assemblyUsing high quality NdFeB Magnet, high efficiency.Motor detachable from the rim, each for changing tyres.High torque at starting, good capacity for payloadMaintenance free, long lifeSuitable controller availableCustomized ...