1975 1976 1977 1978 1979 Yamaha DT250 DT 250 O Ring Chain 520-104L Go to amazon.com Related posts Top 10 yamaha dt 250 FeatureO Ring ChainAverage tensile strength of 7600 lbsFits 1975 1976 1977 1978 1979 Yamaha DT250 DT 250 DescriptionThis chain has an average tensile strength of 7600 lbs and fits the following models: Fits 1975 1976 1977 1978 1979 Yamaha DT250 DT 250