Motor Type: QS138 90H 4KW V1 Mid Drive Motor 
Motor Design: PMSM 
Matching Tires: 14-19 inch 
Magnet Height: 90 hours 
Rated Power: 7500W 
Peak Power: 13500W 
Rated Voltage: 48v-96v 
Speed: 4000 rpm @ 72V, 6500 rpm after flux reduction 
Maximum Torque: 72N.m 
Cooling Method. Air-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 wire (excluding insulation) 
Waterproof rating: IP67 
Colour: Black 
N.W./G.W.: 13 kg/14 kg 
Packing size: 34 cm * 33 Packing size: 34cm * 33cm