It's a motor from an electric skateboard, it has a pretty good grunt to it.
eXkate Powerboard Motorized Electric Skateboards
The motor is mounted to the rear wheels, I am planning on taking off the rear trucks, and sawing it in half, or just removing the other side that is not the drive wheel. Then using a lathe or something grind down the drive wheel to about 2/3 the diameter it is now. That should lower my top speed and give me plenty of grunt. I need to take it all apart and see how it is set before I do anything.