1.Bike engine, Ebike hub motor, E-bike hub motor 2.Small size with high torque. ... 4.Geared drive system. BriefKeyword:Bike engine, Ebike hub motor, E-bike hub motorWe offer a range of Geared Hub Motors ... Spec.: ModelM12180M12060Rated Power(W)250-800 250-1000 Rated Voltage(V)24/36/4824/36/48Speed Range(rpm)160-520160-520Efficiency ... choice for you.Thanks ! Bike engine, Ebike hub motor, E-bike hub motor