homemade twin track go kart II

Motified homemade twin track go kart added new boggie system to help with the tracking of the tracks, video going though the snow and showing some of the drive system using two artic cat 121 x 16 snowmobile tracks, I am guessing it goes about 15 mph which is fast enough going though the woods, I am using a 8hp motor it can be a little under powered going up hills in deep snow but works great around in the yard