53 tooth rear sprocket. Steel. Fits 1988-1990 Honda nx250, 1988 vtr 250 interceptor, 1982-1983 Honda xl250r, 1978-1981 xl250s,1979-1981 xl500s, 1983-1987 xl600r, 1979-1980 xr250,1981-1982 xr250r, 1979-1980 xr500, 1981-1984 xr500r