Motor Type: QS138 90H 4KW V3 water-cooled intermediate drive motor 
Motor Design: PMSM 
Matching Tire: 12-19 inch 
Magnet Height: 90 hrs 
Rated Power: 4000W 
Peak Power: 13.5 kW 
Rated Voltage: 48v-96v 
Speed: 4100 rpm @ 72V, 7000 rpm (flux weakened) 
Maximum Torque: 120 Newton-meters 
Cooling Method: water-cooled 
Maximum efficiency: 93% 
Thermal probe: KTY83-122 
Operating temperature: 70-120 °C, peak 150 °C 
Hall sensors: 1 set 
Phase cable: 20 mm² cross-section of phase wires (excluding insulation) 
Waterproof rating: IP67 
Colour: black 
N.W./G.W.: 15.6 kg/16 kg 
Packing size: 34 cm * 33 cm