Please do not waste my time if you do not know how much money and labor it took to build this motor up. This BBSHD motor has upgraded steel gear, motor stator, and freshly greased interior gears. I have a stock controller that works perfectly, and a Luna Cycle V1 controller with blown MOSFETs. All you have to do is scrape out the Luna Cycle controller and replace the MOSFETs and you have an over 3000 watt BBSHD motor set up. The high performance built motor can run up to 4500 watts if paired with an aftermarket controller and 72v battery. I can add a bunch of heatsinks on the motor for an extra $100. Thanks for looking.