-Light and small compared to hub motorsHigh-performance advantage thanks to flux decay-High climbing efficiency and better acceleration-Weight only; 28lbs-Motor capable of producing 20kw (27hp) at peak and 5.5kw (7.5hp) continuously.-IP 67: totally dustproof. Protected against immersion for 30 min to a depth of 1 m.-High torque-Motor type: PMSM (internal rotor motor)-Brand: QS MOTOR, SIAECOSYS-Magnet height: 70mm 5 pole pairs-Motor gear ratio: 1:2.35-Rated power: 5500W-Nominal voltage: 72V-Nominal output speed: 2250RPM-Maximum output speed: 2955RPM-Maximum torque: 98 N.mCooling method: Air-cooled-Maximum efficiency: 93-Rated current: 85A-Maximum bus current: 150A-Thermal sensor: KTY83/122 (default)-Working temperature: -30°C to 120°C Hall-effect sensor: Single Hall with sealed connector-Phase wire: 16mm²