wphmoto high speed 48v dc 1800w brushless electric motor & controller & wiring harness & forward reverse switch for e-bike atv go kart moped mini bikes motorized bicycle wphmoto <p><b>why choose brushless motor?</b></p><p>1. less electrical and electromagnetic noise</p><p>2. long lifespan: no brushes to wear out, around triple lifespan as brushed motor</p><p>3. low maintenance: no brushes to replace</p><p>4. powerfrugal: power consumption is 1/3 of brushed motor</p><p>5. high efficiency: brushless motors are typically 85-90% efficient whereas brushed dc motors are around 75-80% efficient.</p><p><br></p><p></p><p><b>wiring:</b></p><p>battery: thick black (power negative) /thick red (power positive)</p><p>motor: thick yellow (motor negative) /thick blue (motor positive)</p><p>ignition switch: thin red(vcc)/thin blue</p><p>indicator: thin red (indicator power output) /thin black (indicator negative)</p><p>brake: thin yellow (brake signal)/thin black(negative power)</p><p>speed governor: thin blue(speed handlebar signal input) /thin black (negtive power) /thin red(5v positive power)</p><p>charge port: thin red (charge input power positive) /thin black (power negative)</p><p>brake light: thin red (power positive) /thin black (power negative)</p><p>the controller have 4 groups neccessary cables: battery, motor, ignition lock, derailleur (throttle), when hook up these 4 groups cables, the e-bike can run normally. besides, this controller have other optional functions, you can hook them up according to your applications.</p>