Motor Type: QS138 55H 2.5kw Intermediate Drive Motor 
Motor Design: PMSM 
Reduction Ratio: 1:2.35 
Matching Tires: 12-17 inches 
Magnet Height: 55 hrs 
Rated Power: 2500W 
Rated Voltage: 48v-72v 
Speed: 4700RPM (No Load) 
Maximum Torque: 50N.m 
Cooling Method: Air-Cooled 
Maximum Efficiency: 93% 
Heat Probe: KTY83-122 
Operating temperature: 70-120 °C, peak 150 °C 
Hall sensors: 1 set 
Phase cable: 16 mm² section of phase wire (excluding insulation) 
Waterproof rating: IP67 
Color: Black 
N.W./G.W.: 13 kg/14 kg 
Packing size: 34 cm * 33 cm