Dodgee, if it's just the hub you are after here's what Zedder lists
Part # = 64110-38001
Part Description = HUB,REAR WHEEL
Model Count = 31
DS100C 1978 100 DS100 DUAL PURPOSE
DS100N 1979 100 DS100 DUAL PURPOSE
DS100T 1980 100 DS100 DUAL PURPOSE
DS100X 1981 100 DS100 DUAL PURPOSE
DS125C 1978 125 DS125 DUAL PURPOSE
DS125N 1979 125 DS125 DUAL PURPOSE
DS125T 1980 125 DS125 DUAL PURPOSE
DS125X 1981 125 DS125 DUAL PURPOSE
DS185C 1978 185 DS185 DUAL PURPOSE
DS185N 1979 185 DS185 DUAL PURPOSE
DS185T 1980 185 DS185 DUAL PURPOSE
RL250L 1974 246 RL250 EXACTA TRIALS
RL250M 1975 246 RL250 EXACTA TRIALS
RM100A 1976 98 RM100 OFF ROAD
RM100B 1977 98 RM100 OFF ROAD
RM125A 1976 123 RM125 OFF ROAD
RM125B 1977 123 RM125 OFF ROAD
RM125-M 1975 123 RM125 OFF ROAD
TS100C 1978 97 TS100 HONCO DUAL SPORT
TS100N 1979 97 TS100 HONCO DUAL SPORT
TS100T 1980 97 TS100 HONCO DUAL SPORT
TS100X 1981 97 TS100 HONCO DUAL SPORT
TS125C 1978 123 TS125 DUSTER DUAL SPORT
TS125ERT 1980 124 TS125R DUAL SPORT
TS125N 1979 125 TS125 DUSTER DUAL SPORT
TS125X 1984 124 TS125X DUAL SPORT
TS185B 1977 183 TS185 SIERRA DUAL SPORT
TS185C 1978 183 TS185 SIERRA DUAL SPORT
TS185N 1979 183 TS185 SIERRA DUAL SPORT
TS185T 1980 183 TS185 SIERRA DUAL SPORT
TS185X 1981 183 TS185 SIERRA DUAL SPORT