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 104 links. Fits: Honda CB250N TWO-FIFTY 1991 CRF150F 2007 2009-2020 VT250F INTERCEPTOR 1987-1990 XL200R 1983-1984 XLX250 1984 XR250R 1982 Kawasaki EX400 2011-2012 KLR250 1984-2007 Yamaha YZ125 1978-1979 1981-1982