Here’s some instructions on how you can power a mountainboard with an electric motor.
This electric mountainboard was made with an MBS Core 95 mountainboard, an electric scooter motor, and other various parts.

There seems to have been little advancement in motorized mountainboards and off road boards over the past years. Their are many skeletons left over from motorized boards that have come and gone, and there are very few that have a solid foothold. With how things are currently in the motorized board world, you’ll [...]

There’s a new all-terrain skate in town, and it’s called the Skike.
One feature that sets the Skike apart from other all-terrain skates is it’s calf activated brake.  To brake, you push your feet forward, which will push your calf backward and activate the brake.
For more about the Skike, check out this article at Inline Planet.

With skateboarding you are confined to hard surfaces. Sticks, rocks, cracks, and even small holes are mortal enemies to the skateboard. The wheels of a skateboard just can’t handle them.

If you want to experience off road skateboarding at it’s finest, check out a mountainboard. Also sometimes referred to as an all-terrain board, [...]

Here’s a pretty sweet video of a guy riding his 800 watt off-road electric skateboard on some trails.  Not sure what brand of electric skateboard it is in the video, but both the UM70sx and the m4 800 are 800 watt electric skateboards with off-road tires.
 
Video of an Off-Road 800 Watt Electric Skateboard in Action