The MotoSport.com Turner Chain Steel Sprocket Kit - 428 includes ONE Steel Countershaft (Front) Sprocket, ONE Steel Rear Sprocket, and your choice of ONE Premium 428 Drive Chain, each with the following features: The Turner Chain Steel Sprocket Kit is an easy and affordable way to replace or upgrade your O.E.M. sprockets and chains in one easy purchase! Sprockets / Chainwheels Included: Turner Front Steel Sprocket 428: Made exclusively from the finest high-carbon steel. Outlasts any mild steel or surface-hardened sprocket. Heat treated and hand finished. Turner Rear Steel Sprocket 428: Made exclusively from the finest high-carbon steel. Outlasts any mild steel or surface-hardened sprocket. Heat treated and hand finished. Your Choice of Drive Chain: D.I.D 428 Standard Chain - 120 Links: The D.I.D Standard Non-O-Ring Chain is designed for low horsepower, smaller displacement mopeds, scooters and vintage motorcycles. For machines originally equipped with non-O-ring chains. Solid rollers. Shot-peened parts. High cylindrical and roundness accuracy. Exacting tolerances provide low friction. Pre-stretched. Special alloy steel with extended riveted bushing "anti-kink" design. Highest quality non-O-ring chain in overall combined performance. Average tensile strength of 4,480 pounds. Wear life index: 100. Includes clip-style master link. 120 links. Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use. D.I.D 428 NZ Gold Chain - 120 or 136 Links: Pinning your bike out of every turn might tear apart the stock chain, but D.I.D and their 428NZ chain will not let you, or your race for first, down. For machines originally equipped with non-O-ring chains. Solid rollers. Shot-peened parts. High cylindrical and roundness accuracy. Exacting tolerances provide low friction. SDH pin treatment - hard chromium-carbide layer formed on pin surface for exceptional strength and wear resistance. Pre-stretched. Special alloy steel with extended riveted bushing "anti-kink" design. Highest quality non-O-ring chain in overall combined performance. Up to 19% higher tensile strength; average tensile strength of 5,740 pounds. Wear life index: 410. Weight (per 100 links): 2.20 pounds. Includes a clip-style master link. 120 or 136 links. Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use. Renthal 428 R1 Chain - 120 or 130 Links: Renthals R1 Works Chain is a high-strength non O-ring chain with excellent impact load resistance designed specifically to withstand the stress found in off-road applications. This chain is the choice where a combination of high strength, light weight and maximum power transfer are important considerations. Shot-peened alloy steel side plates for high tensile strength and maximum impact load resistance. Chamfered inner links to reduce the chance of chain derailment. Extended bushings to reduce friction between outer and inner link plates, maximizing power output. Chromized bearing pins for excellent resistance to wear. Gold color side plates help prevent corrosion. Most perfectly matched chain for Renthal sprockets allowing maximum power at the rear wheel. This also extends the life of both the chain and sprockets. Average tensile strength of 4,609 pounds. Maximum displacement (street / off-road): N/A / 150cc. Each chain includes master link and a pair of latex gloves for mess free installation. 120 or 130 links. Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use. Note: Image is for reference ONLY, actual product will vary based on fitment and selection.