If you need to turn battery volts into serious RPMs, this 48 volt 5000 watt brushless DC motor with air cooling from Golden Motor is the way to go. Not a kid's toy; this big bruiser of an electric motor may be relatively compact, but it delivers all the power you need. The aluminum case with cooling fins and fan is water-resistant for real world use.
This great electric motor can be used on a wide range of green, eco-friendly applications such as electric scooters, go-karts, trikes, and motorcycles. Golden Motor even suggests golf carts, fork lifts, and small electric cars. In other words; if you have a custom project that requires a powerful electric motor, then this beauty may be just the ticket to getting out of the shop and into the sun.
to download a PDF copy of the Golden Motor 5000 Watt Wiring diagram.