<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>