@Terratracks Nope! Not custom made. (although I don't know who's in this clip) Aktiv Grizzly was manufactured in Sweden and the last machined left the assembly line in 1990 or 1991. In the same facility Arctic Cat's models were adjusted to fit swedish conditions by basically by installing longer tracks which became popular in Sweden allready in the seventies. Aktiv used a number of different engines over the years. Spirit, Sachs, Rotax. In this clip probably a Rotax 503.
