All XAM O-Ring chains are manufactured with hi-carbon alloy steel for strength and durability. XAM utilizes Nitrite Butadiene O-Rings to seal in lubrication and deliver smooth power with minimal ring drag or loss of horsepower. Chain length is 102 links. Fits: Honda XL250 1971-1975 1978-1979 XL250R 1982-1987 XL250S 1979-1981 XL350R 1984-1987 Kawasaki GPX400 1987-1988 GPX400R 1986 KL250 SUPER SHERPA 1999-2009 KZ250 CSR 1980-1981 Z250 C LTD 1982-1984 Z250 G LTD 1982-1983 Z250 LTD 1980-1981 Suzuki GT185 1974-1980 GT250 (X7) 1979-1982 SP250 1982-1985 SP370 1978-1979 SP400 1980 Triumph STREET TWIN 2021 Yamaha DT400 1977-1978 YZ125 1980