It belonged to my dad. Didn't give anything for it. The frame came out as a 1975 cr250 and the motor is a 1976 wr250. Not sure if the motor was replaced sometime in the past or it is a late model year bike.
CR was close ratio gearbox and WR was wide ratio gearbox.
Cross county racers used the motocross frame and a wide ratio motor to race cross country/ desert events .