That is an R/C setup that uses a PCM brushless controller and an R/C motor. He is using a brushless outrunner motor something like this.

http://www.hobbyking.com/hobbyking/s...Outrunner.html

The OD of the motor is running on the tire. An interesting way to get the reduction required.

As he was flying an electric heli at the beginning of the video, he is probably also using LiPo batteries.