Motor Type: QS138 90H 4KW V1 Mid Drive Motor 
Motor Design: PMSM 
Matching Tires: 14 - 19 inches 
Magnet Height: 90 hrs 
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 wires (excluding insulation) 
Waterproof rating: IP67 
Color: Black 
N.W./G.W.: 13 kg/14 kg 
Packing dimensions: 34 cm * 33 cm