RK's H series chains are low-cost non-sealed motorcycle chains featuring 4 side (Quad) rivet staked pins. When pins are quad riveted they are stronger and more stabilized; which results in increased stress resistance due to high engine loads and makes the transmission of horsepower to the ground more efficiently. As a result of the change to the 4 rivet staked pins the addition of solid bushings and the application of RK's new specially formulated coating; RK non-sealed chains now show a 40% increase in chain life! RK non-sealed chains perfect for low displacement motorcycles that did not come from the factory with sealed chains. Tensile Strength: 10400 Nm Weight: 1.89 KG Max CC Rating: 500cc Street Master Link Type: CLIP Chain Length: 110 Fits: Ducati 600 PANTAH SL/TL 1981-1985 650 SL PANTAH 1978-1986 900 GTS 1975-1979 Honda CB250 1973-1978 CB250N 1981-1982 CB250T1-T2 1978-1981 CB350F 1972-1976 CB360 1974-1977 CB500 FOUR 1972-1973 CB500/550 1974-1979 Kawasaki Z440 1980-1988 Z440A LTD 1981-1983 Z440D LTD 1982-1984 Z500 1979-1982 Z550 1982-1990 Suzuki GS550 1977-1980 GS550E 1978-1982 GT500 1976-1977 Yamaha RD250 1974-1975