Performance: Stable performance, easy installation and removal, 1/3 reduction gearbox with ultra high performance, effectively protects the gearbox motor body and increases high output. Function: Reduces motor speed when needs to exceed RPM, power distribution is sensitive, provides vehicle start, prevents car from shaking and stalling at start up. Brushed Motors: Brushed motors allow precise and huge energy conversion. The rotor is precisely balanced for increased reliability and maximum speed. Structure: High purity copper winding and sealed bearings, built in cooling fan, external demagnetizing sleeve, high power, low friction and low noise. Effectiveness: High purity copper winding maximizes brushed motor efficiency and high strength magnets provide stable brushed motor performance.