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Learn MoreThe MotoSport.com Sunstar Chain & Steel Sprocket Combo includes ONE Steel Countershaft (Front) Sprocket, ONE Steel Rear Sprocket, and your choice of ONE Premium Drive Chain, each with the following features:
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:
Sunstar Steel Rear Sprocket:
Chain | Chain Type | Avg. Tensile Strength | Maximum Rated Displacement | Weight (pounds per 100 links) | Master Link Type |
---|---|---|---|---|---|
D.I.D 420 Standard Chain | Non-sealed (standard) | 4,200 pounds | N/A | N/A | Clip |
D.I.D 420 NZ3 Chain | Non-sealed (standard) | 4,780 pounds | N/A | 1.81 | Clip |
Renthal 420 R1 Chain | Non-sealed (standard) | 4,271 pounds | 150cc | 1.76 | Clip |
Sunstar 420 MXR1 Works MX Racing Chain | Non-sealed (standard) | 5,000 pounds | 150cc | 1.76 | Clip |
D.I.D 428 Standard Chain | Non-sealed (standard) | 4,480 pounds | N/A | N/A | Clip |
D.I.D 428 NZ Chain | Non-sealed (standard) | 5,740 pounds | N/A | 2.20 | Clip |
Renthal 428 R1 Chain | Non-sealed (standard) | 4,609 pounds | 230cc | N/A | Clip |
Sunstar 428 MXR1 Works MX Racing Chain | Non-sealed (standard) | 5,800 pounds | 150cc | 2.13 | Clip |
D.I.D 520 Standard Chain | Non-sealed (standard) | 6,700 pounds | N/A | N/A | Clip |
D.I.D 520 DZ2 Chain | Non-sealed (standard) | 7,870 pounds | 450cc | 3.08 | Clip |
D.I.D 520 ERT2 Chain | Non-sealed (standard) | 8,100 pounds | 450cc | 2.99 | Clip |
D.I.D 520 NZ Heavy Duty Chain | Non-sealed (standard) | 8,800 pounds | 250cc | 3.54 | Clip |
D.I.D 520 ATV X-Ring Chain | X-ring | 7,600 pounds | 750cc | 3.65 | Clip |
D.I.D 520 VX2 X-Ring Chain | X-ring | 8,210 pounds | 750cc | 3.35 | Clip |
D.I.D 520 ERT3 Racing Chain | Non-sealed (standard) | 8,300 pounds | 450cc | 2.99 | Clip |
D.I.D 520 ATV2 X-Ring Chain | X-ring | 8,430 pounds | 750cc | 3.42 | Clip |
D.I.D 520 ERV3 X-Ring Chain | X-ring | 8,650 pounds | 750cc | 3.30 | Rivet |
Renthal 520 R4 ATV Z-Ring Chain | Z-ring | 8,093 pounds | N/A | N/A | Rivet and Clip |
Renthal 520 R1 Race Chain | Non-sealed (standard) | 7,644 pounds | 450cc | 2.13 | Clip |
Sunstar 520 HDN Heavy Duty Non-Sealed Chain | Non-sealed (standard) | 7,900 pounds | 250cc | 3.15 | Clip |
Sunstar 520 SSR O-Ring Sealed Ring Chain | O-ring | 7,700 pounds | 400cc | 3.35 | Clip |
Sunstar 520 XTG TripleGuard Sealed ATV & Offroad Chain | TG-ring | 8,500 pounds | 750cc | 3.36 | Clip |
Sunstar 520 MXR1 Works MX Racing Chain | Non-sealed (standard) | 9,000 pounds | 500cc | 2.99 | Clip |
Notes on Manufacturer Chain Type:
Note for installing X-ring chains: As X-ring chains are wider than standard roller chains, when fitting an X-ring chain to a motorcycle that was fitted with a non O-ring chain as original equipment, it is essential to check that there is proper clearance of the engine cases near the countershaft sprocket and any other places of close contact. Failure to do so could result in damage to the chain and motorcycle and could ultimately cause the chain to fail.
Note: Image is for reference ONLY, actual product will vary based on fitment and selection.
Some Helpful Tools: Try the Motion Pro Chain Breaker & Riveting Tool or BikeMaster's Heavy-Duty Chain Breaker & Rivet Tool to make removing your old chain and installing your new chain as easy and painless as possible.
D.I.D 420 Standard Chain:
The D.I.D Standard Non-O-Ring Chain is designed for low horsepower, smaller displacement mopeds, scooters and vintage motorcycles.
D.I.D 420 NZ3 Chain:
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.
D.I.D's exclusive SDH (Super DH) pin treatment is the secret behind the superior performance of the NZ Series chains. This high-tech pin treatment forms an extremely hard chromium carbide layer on the pin's surface while maintaining a soft inner core. SDH treated pins have extreme impact strength while maintaining outstanding shock absorption. This treatment creates a chain with anti-oxidation properties and superior wear resistance against invasion of hard foreign materials.
Renthal 420 R1 Chain:
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.
Sunstar 420 MXR1 Works MX Racing Chain:
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.
D.I.D 428 Standard Chain:
The D.I.D Standard Non-O-Ring Chain is designed for low horsepower, smaller displacement mopeds, scooters and vintage motorcycles.
D.I.D 428 NZ Chain:
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.
D.I.D's exclusive SDH (Super DH) pin treatment is the secret behind the superior performance of the NZ Series chains. This high-tech pin treatment forms an extremely hard chromium carbide layer on the pin's surface while maintaining a soft inner core. SDH treated pins have extreme impact strength while maintaining outstanding shock absorption. This treatment creates a chain with anti-oxidation properties and superior wear resistance against invasion of hard foreign materials.
Renthal 428 R1 Chain:
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.
Sunstar 428 MXR1 Works MX Racing Chain:
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.
D.I.D 520 Standard Chain:
D.I.D is the number one motorcycle chain in the world. D.I.D chains are used by factory races teams from all manufacturers in race series everywhere.
D.I.D 520 DZ2 Chain:
The All New D.I.D 520DZ2 is the best value in a lightweight, high-performance chain designed for motocross racing.
D.I.D's exclusive SDH (Super DH) pin treatment is the secret behind the superior performance of the DZ Series chains. This high-tech pin treatment forms an extremely hard chromium carbide layer on the pin's surface while maintaining a soft inner core. SDH treated pins have extreme impact strength while maintaining outstanding shock absorption. This treatment creates a chain with anti-oxidation properties and superior wear resistance against invasion of hard foreign materials.
D.I.D 520 ERT2 Chain:
The D.I.D ERT2 chain is the most trusted chain in Supercross and motocross racing because of its reputation of meeting the high quality demands that are required when pushing the limits. It was designed with the intention of making a chain that is optimized for the purpose of racing. D.I.D beefed up the ERT2 chain by increasing the pin size by 3% to give the chain an average tensile strength of 8,100 pounds. Increasing the strength of the ERT2 chain did not come with a sacrifice of weight, in fact DID was able to shed 5% from the previous ERT chain.
D.I.D 520 NZ Heavy Duty Chain:
Pinning your bike out of every turn might tear apart the stock chain, but D.I.D and their 520NZ chain will not let you, or your race for first, down.
D.I.D's exclusive SDH (Super DH) pin treatment is the secret behind the superior performance of the NZ Series chains. This high-tech pin treatment forms an extremely hard chromium carbide layer on the pin's surface while maintaining a soft inner core. SDH treated pins have extreme impact strength while maintaining outstanding shock absorption. This treatment creates a chain with anti-oxidation properties and superior wear resistance against invasion of hard foreign materials.
D.I.D 520 ATV X-Ring Chain:
The D.I.D X-ring is superior to other types of O-ring designs; it has half the power loss and 1.5 to 2 times the wear resistance of a normal O-ring chain. D.I.D's patented X-ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-rings and other makers' modified O-rings have squashed points that increase friction. The twisting action of the X-ring disperses the pressure and minimizes power loss. The X-ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-ring. X-rings have the greatest wear resistance of any other type of O-ring or non-O-ring chain.
D.I.D 520 VX2 X-Ring Chain:
D.I.D's Pro-Street X-Ring VX Series Chains are high quality X-Ring chains with superior strength to withstand the horsepower of today's dual sports and trials bikes. The VX Series uses D.I.D's patented low friction X-Ring for maximum performance.
Half the Power Loss - Compared with Normal O-ring chains, D.I.D's patented X-Ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-rings and other makers' modified O-rings have squashed points that increase friction. The twisting action of the X-Ring disperses the pressure and minimizes power loss.
1.5 to 2 Times Longer Wear Resistance - Compared with Normal O-ring chains, the X-Ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-ring. X-Rings have the greatest wear resistance of any other type of O-ring or non-O-ring chain.
The best chain in motocross just got better, the D.I.D. ERT3 chain has been proven by the top teams in the world. With cutting edge technology and designed for the extreme conditions of racing, the D.I.D. ERT3 has 25% greater anti-shock performance and a 5% higher tensile strength over the previous generation chain without changing the weight of the chain. This means that the ERT3 is stronger without compromise while keeping the rotational mass to a minimum. Used and tested by professional motocross teams such as Factory KTM, Honda, Yamaha, Kawasaki and Suzuki, the D.I.D. ERT3 is the next level of chain performance. The gold coating also adds that level of factory look while giving the ERT3 excellent durability.
The D.I.D. ERT3 has SDH pin treatment that creates an extremely hard chromium carbide layer on the pin's surface while the inner core is maintained soft to absorb extreme shock loads.
The D.I.D. ERT3 uses solid bushing technology for high wear resistance. The cold-formed solid bushings have a smooth seamless surface with complete roundness, giving the chain exceptional wear life.
Sporting the same quality as all DID chains, the 520 ATV2 is a robust design with thicker plates for increased strength and heat dissipation. Perfect for hard-on-the-throttle quads. Don't worry about increased friction. With the "X" type sealing ring, friction is kept at bay with sealing surfaces that hold more lubrication in against the rollers and pins. With design like this, DID has made an ATV chain you'll adjust once and then keep on your bike for seasons to come.
D.I.D 520 ERV3 X-Ring Chain:
The D.I.D ERV3 X-ring chain is the ultimate high-performance, lightweight, low-friction race chain available and is used extensively by many off-road race teams. The ERV3 X-ring chain utilizes D.I.D's patented X-ring technology which reduces friction by 50% over standard O-ring chains for minimized power loss. The pins on the ERV3 X-ring chain have been put through a patented heat-treatment process to produce a pin that is 1.5 times harder than conventional pins. The result is a chain that is significantly stronger and offers better wear resistance than many other chains on the market. D.I.D ERV3 X-ring chains feature a gold-plated finish that resists rust and adds a little style to your motorcycle or ATV.
Half the Power Loss - Compared with Normal O-ring chains, D.I.D's patented X-Ring construction reduces friction by twisting between the side plates instead of being squashed. Normal O-rings and other makers' modified O-rings have squashed points that increase friction. The twisting action of the X-Ring disperses the pressure and minimizes power loss.
1.5 to 2 Times Longer Wear Resistance - Compared with Normal O-ring chains, the X-Ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-ring. X-Rings have the greatest wear resistance of any other type of O-ring or non-O-ring chain.
Renthal 520 R4 ATV Z-Ring Chain:
Renthal's R4 ATV Chain is a premium strength Z-ring chain with excellent impact load resistance, designed specifically to withstand the stress found in ATV applications. The R4 chain features a heavier duty construction process and materials than the standard Renthal R3-2 O-ring chain which increases its service life and tensile strength. The patented "spring effect" Z-rings guarantee constant lubrication for longer life and pins manufactured from special alloy steel also contribute to better resistance from wear. Thicker side plates and a quad riveting manufacturing process round out the upgrades on this ATV-specific chain.
Renthal 520 R1 Race Chain:
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.
Sunstar 520 HDN Heavy Duty Non-Sealed Chain:
For a quality non-sealed O.E.M. replacement level chain, Sunstar offers the 520HDN (HDN = Heavy Duty Non-sealed). This cost effective replacement chain offers great performance and durability at a great price point. This chain is recommended for any motorcycle up to 250cc and is available in pre-cut lengths. It uses a clip-type master link and provides great strength with a 7,850-pound rating.
Sunstar 520 SSR O-Ring Sealed Ring Chain:
The Sunstar 520SSR O-ring chain (SSR = Standard Sealed Ring) is a heavy duty, long lasting sealed chain that uses only the highest quality rubber O-rings that maintain lubricity, resulting in less friction and the smoothest transfer of power. It is also an extremely strong option for an O-ring chain with a 7,670-pound tensile strength rating and seamless roller and bushing construction. It is constructed with a special heat-treated alloy steel for added strength and life. This great, versatile sealed ring chain is available only in 520 chain pitch for any motorcycle up to 400cc in the natural color option (non-gold) and in pre-cut lengths. It uses clip-type connecting link.
Sunstar 520 XTG Tripleguard Sealed ATV & Offroad Chain:
An excellent choice for the most extreme off-road conditions encountered in ATV and/or off-road motorcycle racing, Sunstar's premier sealed Works level chain is the 520XTG (XTG = Xtreme Triple Guard). It features Sunstar's TripleGuard sealed ring technology meaning there are three sealing lips and lubrication pools per side of the ring versus a single sided lip that is typical of standard O-rings. This design effectively protects the critical areas of the chain from mud, sand, dirt and the harsh conditions encountered in off-road racing (hence the name Xtreme for extreme conditions) and the chain stays well lubricated for a long duration of use. The XTG is perfect for all ATV's and off-road motorcycles 750cc or less. All components are 100% heat treated and its tensile strength is rated at 8,460 pounds. It's offered in pre-cut lengths and uses a press fit, clip-type connecting link in the gold color option (gold outer plates / natural inners).
Sunstar 520 MXR1 Works MX Racing Chain:
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.
Product Variant | Manufacturer Part # |
---|---|
Gold / 120 Links | 420NZ3 G&B x 120, C241 |
Gold / 126 Links | SS420MXR-126 |
Gold / 130 Links | C246 |
Gold/Gold / 130 Links | 420SR-130 |
Natural / 120 Links | 420x120 |
Natural / 126 Links | 420x126 |
Natural/Natural / 120 Links | 420-120 |
Product Variant | Manufacturer Part # |
---|---|
420 / 12T | 10412 |
420 / 13T | 10413 |
420 / 14T | 10414 |
420 / 15T | 10415 |
Product Variant | Manufacturer Part # |
---|---|
420 / 48T | 2-142348 |
420 / 49T | 2-142349 |
420 / 50T | 2-142350 |
420 / 51T | 2-142351 |
420 / 52T | 2-142352 |
420 / 53T | 2-142353 |
420 / 54T | 2-142354 |
WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.