Mid-drive motor & controller 500W

C$ 999.00C$ 1,099.00

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 operating 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

Additional information

Bottom Bracket Size

68mm, 100mm, 120mm


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