harley davidson once made a dirt bike 1970 harley davidson baja 100 1971 harley davidson baja 100 rare 1970 harley davidson baja 100 a 1970 sportster xlh turned desert sled 1970 harley davidson baja 100 racer for 1978 harley davidson aermacchi sxt 125 1972 harley davidson baja iconic that time harley davidson made dirt bikes harley mx1000 ironhead by bull 1971 harley davidson msr 100 baja for harley mx1000 ironhead by bull 1970 harley davidson aermacchi baja 100