Compatibility AT1E 1969 USAAT1M MOTOCROSS 1969 USAAT1B 1970 USAAT1MB MOTOCROSS 1970 USACT1B 1970 USAHT1 1969 USAHT1B 1970 USAHT1BM 1971 USAAT1C 1971 USAAT1MX MOTOCROSS 1971 USACT1C 1971 USALS2 1972 USAAT2 1972 USAAT2M MOTOCROSS 1973 USAAT3 1972 1973 USAATMX 1972 1973 USACT2 1972 USACT3 1973 USALT2 1972 1973 USALT3 1973 USALT2M 100 MOTOCROSS 1972 1973 USALTMX 1973 USATY250 1974 USADT100 1974 USADT100 1975 USAMX100 1974 USAMX100 1975 USAMX125 1974 USAMX125 1975 USARS100 1975 USATY175 1975 USADT100 1976 USARS100 1976 USATY175 1976 USATY250 1976 USATY250 1977 USA