Mid-drive motor and controller 500W

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500W 8FUN Mid-drive conversion kits is a geared motor and a chain wheel that is installed on the bicycle bottom bracket, substituting crank shaft, chain wheel and cranks. Crank ope rating motor kit Suitable for down-hill and up-hill sport suspension mountain bikes Using bicycle transmission Super high torque taking mechanical advantage of the gear shift Special frame consideration for installation Heavier than hub motor kits Some geometrical limitations for down tube battery cases -- Position Mid Motor Construction Geared Motor Nominal Voltage 36V Rated Power 500 W RPM 110-130 Max Torque 100 N.m Efficiency ≥ 80 % PAS SENSOR Speed sensor Shaft Standard JIS Mounting Parameters Weight 4.3 kg without battery Further Specifications Cadence (Pulses/Cycle) 1 Reduction Ratio 1:21.9 Magnet Poles 16 Noise < 55 dB IP-Code IP 65 Show more