Photo 1 of 27 in
"2007 Thor 40th Anniversary Celebration/Primm Museum"

2007 Thor 40th Anniversary Celebration/Primm Collection Visit 1

Four-time 250cc World Champ Torsten Hallman (left) with Thor's Bob Maynard. Torsten's skill on a bike helped fuel the origins of motocross in the U.S.

Photo Credit: GuyB