Motovario variators, designated TXF, S, are stepless transmissions that use friction discs to transfer torque. This is a module that is placed between the electric motor and the gearbox. These variators, depending on the model, have power outputs ranging from 0.12 kW to 9.2 kW. They are used to smoothly change the speed of the drive system, so they are a convenient alternative to inverters.