Jim's Historical Favorites - Jim Gianatsis
Bob Hannah, reigning 1976 AMA 125cc National Champion, on the 1977 works Yamaha OW125, the last air cooled bike.

Bob Hannah, reigning 1976 AMA 125cc National Champion, on the 1977 works Yamaha OW125, the last air cooled bike.

classicmotocrossAMANationalTransAmSupercross