Fast and powerful 4000 Watts direct drive hub motor kit
Great for all terrains and high speed, high voltage applications
Wide battery voltage range, 36 to 75V
Multi-functional smart display allows adjust system performance at the touch of a button
Smart motor over-temperature protection
Kit Includes Optional Components
Motor: Crystalyte's latest Crown TC30 direct drive hub motor has larger permanent magnets and copper mass, deeper stator and increased torque, efficiency, and acceleration. Thickened axle holds up to high speeds, heavy loads and regen braking. Large gauge conductors allow motor to sustain over 4000 Watts continuously. Fits standard 135mm dropouts with up to 10 speed freewheel. Disk brake ready.
Disc Brake Rotor Size Compatibility
180 - 203mm
Disc Brake Rotor Compatibility
Standard 6 mounting holes
7-10spd (axle spacer washer required with 8-10spd freewheels)
Spoke Gauge Compatibility
Rim Size Compatibility
20 - 29 inches
635mm / 25"
Controller: Powerful 18MOSFETs sensorless controller puts out 50A continuous and supports up to 90V batteries. With its advanced sensorless capability, there is no need to use or connect motor Hall sensor wires which eliminates extra wiring and allows more reliable operation as hall sensors are sensitive to heat and moisture. Rubber gaskets protect controller from rough weather.
lb / kg
0.8 x 6.7 x 3" / 275 x 170 x 75mm
Battery Voltage Range
Regen Braking Current
up to 12A
Cycle Analyst: Multi-functional smart digital display. Note: to utilize motor temperature monitoring and over-temperature protection
Shows Volts, Amps, Watts, Amp-hours, Whatt-hours, speed, distance, battery state of charge, motor temperature.
Smart over-temperature control kicks in after motor temperature reaches 80°C and gradually reduces power limit if temperature continues to rise, preventing motor ever reaching unsafe temperature level without completely shutting off power.
Allows to set speed and power limits - a necessary feature for street legal compliance.
Allows to fine tune throttle response.
Supports pedal assist sensor and torque sensor.
Preset and calibrated to kit components.
Throttle: Choose thumb, half twist, full grip, left side full grip, left side half twist, or left side thumb
Click on image to view larger
Hall Effect Sensor
~ 1 - 4V
Handlebar mounted power on/off/kill switch. allows to quickly power on and off the system.
Click on image to view larger
Wiring harness: All kit components, as well as any optional components added to the kit, will be plug-and-play, calibrated and tested. CA to Motor Temperature Sensor cable is included. Kit comes with high current connectors and heavy gauge wires for battery and motor cables.
Two torque arms, one on each side, are necessary to prevent motor axle spinout - axle spinning inside dropout slots. We offer torque arms as an optional component because there are different styles of torque arms available. Our universal torque arms should work with most frames. Other torque arms may need modifications like drilling a hole in the torque arm to match a fender mounting hole near dropout.
13-14 gauge single butted spokes are recommended for most applications. If spokes are purchased with our rim, we will automatically calculate the correct spoke length. If you will be using your own rim, please specify your rim ERD (effective rim diameter) in order comments so we can calculate the spoke length.