The MotoSport.com Sunstar Chain & Steel Sprocket Kit includes ONE Steel Countershaft (Front) Sprocket, ONE Steel Rear Sprocket, and your choice of ONE Premium 420 Drive Chain, each with the following features:
Sprockets / Chainwheels Included:
Sunstar is the largest O.E.M. supplier of sprockets and brake rotors in the world. In fact, your motorcycle probably came from the factory with a Sunstar sprocket. Need a reason to choose Sunstar? Every Sunstar product is imbued with superior quality, uses an exclusive heat-treatment and quenching process, is based on advanced research and design, and is sold at an added value price.
Sunstar Front Sprocket 420:
- Manufactured from case-hardened chromoly steel for the ultimate in strength and durability.
- "Parkerizing" surface treatment for rust and corrosion resistance.
Sunstar Steel Rear Sprocket 420:
- Manufactured using only the highest quality 1045 high-carbon steel.
- Exclusive heat treatment for added strength and wear resistance.
- Most are zinc plated and have a baked-on durable paint process for corrosion resistance.
- The strongest, longest lasting steel replacement sprocket available.
Your Choice of Drive Chain:
D.I.D 420 Standard Chain - 120 or 126 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 4,200 pounds.
- Wear life index: 100.
- Includes clip-style master link.
- 120 or 126 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 420 NZ3 Gold Chain - 120 or 126 Links:
Pinning your bike out of every turn might tear apart the stock chain, but D.I.D and their 420NZ3 Gold 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.
- DHA 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 4,780 pounds.
- Wear life index: 410.
- Weight (per 100 links): 1.81 pounds.
- Includes a clip-style master link.
- 120 or 126 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 420 R1 Chain - 120 or 130 Links:
Renthal's 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 4,271 pounds.
- Wear life index: 300.
- Maximum displacement (street / off-road): N/A / 150cc.
- Weight (per 100 links): 1.76 pounds.
- 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.
Sunstar 420 MXR1 Works MX Racing Chain - 126 Links:
Sunstar's MXR1 Works MX / SX / Off-Road race chain (MXR = Motocross Xtreme Racing) is a premium quality, highly durable non-sealed chain specifically designed for Motocross, Supercross and/or off-road racing. Featuring Sunstar's oversized TripleStar treated ultra hard pins and 100% heat treated components, the MXR1 chain is constructed to handle the demands of the highest levels of racing. This is also one of the lightest MX chains on the market thanks to its superlight design - the 520MXR1 120 link version weighs less than 3.6 pounds, yet is super strong with an 8,970-pound tensile strength rating. Its combination of strength, durability and light weight make it the top choice for serious racers.
- Deep gold side plates and gold inner plates.
- Super strong and lightweight design for high performance / racing mini off-road and motocross machines.
- Utilizes TST (TripleStar Treated) ultra-hard pins and 100% heat treated components for high strength and durability.
- Seamless rollers and bushings help provide the added life and durability.
- Average tensile strength of 4,970 pounds.
- Maximum rated displacement (street / off-road): 150cc / 150cc.
- Weight (per 100 links): 1.76 pounds.
- Includes clip-style master link.
- 126 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.
