So back in the day when these things were legal, what classes were they raced on? Like how today in two wheel motocross there's 250's and 450's.(RIP 2-Strokes) Also, what machines were raced? I know the ATC 250R, the Tecate, and the Tri Z, but what else was raced? Like the conversions or the one off machines.
Please add pics if you have any because I would like to see them and a picture is worth a thousand words.