Designed for high-powered mini racing machines up to 100cc capacity that use 428 non-O-ring chain Shot-peened alloy steel side plates Extended bushings to reduce friction between outer and inner link plates, which maximizes power transmission Ultra-high 4,496 lb. (EU: 2039,35 kg) average tensile strength Case-hardened alloy steel bearing pins for maximum resistance to wear Gold-colored side plates help reduce corrosion The perfect match for Renthal sprockets Clip type link included. RENTHAL CHAIN 428-120