RK's MS 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. Weight: 0.78 KG Max CC Rating: 125cc Street Master Link Type: CLIP Chain Length: 114 Fits: Honda CR60 1983-1985 CR80 1980-1984 CR80R 1985-1989 Husqvarna TC65 2017-2021 KTM 60 SX 1998-2002 65 SX 1998-2022 Kawasaki KX80 1979-1980 Suzuki GT50 K 1977-1980 Yamaha YZ65 2019-2021