Sunstar Chain & Aluminum Sprocket Combo

Sunstar Chain & Aluminum Sprocket Combo
Sunstar Chain & Aluminum Sprocket Combo

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Description Item #SUT0013

The MotoSport.com Sunstar Chain & Aluminum Sprocket Combo includes ONE Steel Countershaft (Front) Sprocket, ONE Aluminum Rear Sprocket, and your choice of ONE Premium 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:

  • Manufactured from case-hardened chromoly steel for the ultimate in strength and durability.
  • "Parkerizing" surface treatment for rust and corrosion resistance.

Sunstar Aluminum Rear Sprocket:

  • Constructed of high quality, aerospace grade 7075 T-6 aluminum.
  • Computer designed weight reduction holes for lightness.
  • Exclusive tooth-valley design provides 24% better chain contact area for the best power transfer possible.
  • A hard anodized coating is applied to provide a super durable finish to an already great sprocket.

Your Choice of Drive Chain:

ChainChain TypeAvg. Tensile StrengthMaximum Rated DisplacementWeight (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 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:

  • Z-ring - Renthal proprietary and patented X-ring design.
  • TG-ring - Sunstar proprietary X-ring design. TripleGuard sealed ring technology where there are 3 sealing lips and lubrication pools on each side of the ring to maintain top performance in high heat, extreme conditions; the TripleGuard ring type is the best for lubrication and protection.

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.

  • 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.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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 (2-stroke / 4-stroke / Trials): 85cc / 150cc / 250cc.
  • Weight (per 100 links): 1.76 pounds.
  • Each chain includes master link and a pair of latex gloves for mess free installation.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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 5,000 pounds.
  • Maximum rated displacement (street / off-road): 150cc / 150cc.
  • Weight (per 100 links): 1.76 pounds.
  • Includes clip-style master link.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

Return to Chart

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.

  • 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.
  • 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'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.

Return to Chart

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.

  • 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 (2-stroke / 4-stroke / Trials): 150cc / 230cc / 400cc.
  • Each chain includes master link and a pair of latex gloves for mess free installation.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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 5,800 pounds.
  • Maximum rated displacement (street / off-road): 250cc / 150cc.
  • Weight (per 100 links): 2.13 pounds.
  • Includes clip-style master link.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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 6,700 pounds.
  • Wear life index: 100.
  • Includes a clip-style master link.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • Great value in a lightweight chain.
  • Designed for off-road riding and motocross.
  • The DZ2 has twice the lifespan of the previous DZ.
  • SDH pin treatment - hard chromium-carbide layer formed on pin surface for exceptional strength and wear resistance.
  • Flexible inner soft core absorbs shock.
  • For entry level motocross, trial riding at an affordable price.
  • Average tensile strength of 7,870 pounds.
  • Wear life index: 410.
  • Rated for up to a 450cc motocross bike.
  • Weight (per 100 links): 3.08 pounds.
  • Includes a clip-style master link.
  • Notes: DZ and DZ2 Connecting Links are not interchangeable. 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'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.

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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.

  • Exclusively designed for motorcycle racing.
  • High-performance, lightweight and low friction chain.
  • 3% bigger pin diameter and 5% lighter than former ERT.
  • Provides the highest wear resistance, tensile strength and impact resistance.
  • Average tensile strength of 8,100 pounds.
  • Wear life index: 430.
  • Rated for up to a 450cc motocross bike.
  • Weight (per 100 links): 2.99 pounds.
  • Includes a clip-style master link.
  • Notes: ERT and ERT2 Connecting Links are not interchangeable. Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • 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 8,220 pounds.
  • Wear life index: 410.
  • Rated for up to a 250cc bike.
  • Weight (per 100 links): 3.54 pounds.
  • Includes a clip-style master link.
  • 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'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.

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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.

  • Uses a special steel alloy designed specifically to provide the extra strength required for quad racing.
  • Features the same low friction, long wearing X-ring technology as D.I.D's VX, ZVM-X, ZLV, and ERV chains.
  • The ATV X-ring chain is engineered to create additional pockets to lock in grease to prolong the life of the chain.
  • Solid rollers.
  • Shot-peened parts.
  • High cylindrical and roundness accuracy.
  • Exacting tolerances provide low friction.
  • Pre-stretched.
  • Extended riveted bushing "Anti-Kink" design.
  • Average tensile strength of 7,600 pounds.
  • Wear life index: 3250.
  • Rated up to a maximum displacement of 750cc.
  • Weight (per 100 links): 3.65 pounds.
  • Includes a clip-style master link.

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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.

  • Greater rigidity (7% higher than previous VM chain) creates smother handling, reduced power loss and quicker response.
  • Highest value in all D.I.D series.
  • D.I.D X-Ring has half the friction and 50 - 100% longer wear life compared to typical O-ring chains.
  • Superior longer life than previous VM series.
  • Solid rollers.
  • Shot-peened parts.
  • Pre-stretched.
  • Extended riveted bushing "Anti-Kink" design.
  • Replaces the Professional O-ring V Series and the Premium X-ring VM series chains.
  • Average tensile strength of 8,210 pounds.
  • Wear life index: 3500.
  • Ideal for bikes and ATV's up to 750cc.
  • Weight (per 100 links): 3.35 pounds.
  • Includes clip-style master link.

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.

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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.

  • Exclusively designed for motorcycle racing.
  • High performance, lightweight and low friction chain provides the winning edge in World Class competition.
  • Features gold color plates.
  • Average tensile strength of 8,650 pounds.
  • Wear life index: 3100.
  • For 250 - 750cc Rally, 750cc Superbike and 250 - 750cc Endurance applications.
  • Weight (per 100 links): 3.30 pounds.
  • Includes a rivet-style master link.

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.

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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.

  • Patented Z-ring seals dramatically increase the life of the chain.
  • Larger diameter pins manufactured from specially enhanced steel improve the resistance to shock loads.
  • A quad riveting process on each pin increases the tensile strength of the chain.
  • Thicker inner and outer plates increase the fatigue life of the chain.
  • Available in 520 pitch only.
  • Average tensile strength of 8,093 pounds.
  • Each chain includes a pair of latex gloves for mess free installation.
  • Note: The Renthal R4 chain is supplied with both an easy-fit split master link and a superior solid-pin rivet master link which matches the durability of the chain.

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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.

  • 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 7,644 pounds.
  • Wear life index: 300.
  • Maximum displacement (2-stroke / 4-stroke / Trials): 250cc / 450cc / 400cc.
  • Weight (per 100 links): 2.13 pounds.
  • Each chain includes master link and a pair of latex gloves for mess free installation.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • Cost effective, high quality, non-sealed chain.
  • Zero compromise in performance and reliability.
  • Great for any off-road / MX motorcycle up to 250cc.
  • Only available in Natural finish.
  • Average tensile strength of 7,900 pounds.
  • Maximum rated displacement: 250cc.
  • Weight (per 100 links): 3.15 pounds.
  • Includes clip-style master link.
  • Notes: NOT suggested for competition. Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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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.

  • High quality, durable and long lasting standard O-ring chain recommended for any motorcycle up to 400cc.
  • Constructed of special, heat-treated alloy steel for the best possible strength and lifespan.
  • O-rings keep the chain well lubricated, resulting in less friction and consistent power transfer.
  • Available only in Natural finish.
  • Average tensile strength of 7,700 pounds.
  • Maximum rated displacement (street / off-road): 400cc / 400cc.
  • Weight (per 100 links): 3.35 pounds.
  • Includes press fit clip-style master link.
  • Note: NOT suggested for competition.

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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).

  • Top of the line ATV and off-road racing chain.
  • Features exclusive TG (TripleGuard) sealed-ring technology to guard the chain from sand or dirt entering and causing wear.
  • Built specifically for handling the most extreme conditions encountered in ATV and off-road motorcycle racing.
  • TG-ring design prevents the loss of lubricant and is deigned to perform in any extreme heat or other course conditions.
  • Available only in Gold (gold outer plates / natural inners) finish.
  • Average tensile strength of 8,500 pounds.
  • Maximum rated displacement (street / off-road): 400cc / 750cc.
  • Weight (per 100 links): 3.36 pounds.
  • Includes press fit clip-style master link.

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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.

  • 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 9,000 pounds.
  • Maximum rated displacement (street / off-road): N/A / 500cc.
  • Weight (per 100 links): 2.99 pounds.
  • Includes clip-style master link.
  • Note: Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.

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11 Reviews
4.6 out of 5 stars
5 Star   9 4 Star   5 3 Star   0 2 Star   0 1 Star   0
MotoEnthusiast
Verified Purchaser
Portland, OR, USA
Durability   Ease of Installation   Performance   Style  
SUnstAr chain and sprocket combo

I was pretty upset that the rear sprocket didn't come with new bolts like my last purchase for my CR250. I had to re-use my old rusty stripped out bolts and nuts. It takes away the nice look of the black sprocket ;-( . besides that its a great set up.

Motodad
Top 50 Contributor
Texas, USA
Durability   Ease of Installation   Performance   Style  
Speed and style

The sunstar sprocket combo is perfect, great price, great style and colors available and extremely durable. Best bang for the buck with great style and speed based on available gearing options

Seth
Verified Purchaser
Durability   Ease of Installation   Performance   Style  

one of the best sprocket you could get my opinion

Brentoximous
Verified Purchaser
Wilson, WY, USA
Durability   Ease of Installation   Performance   Style  
Chain and sprocket combo

the combos are the way to go, sorta wish I would've gotten the gold chain for looks but nobody sees that after the gate drops. I've only put 4 motos on the kit and everything still looks good.

crf50
Verified Purchaser
usa
Durability   Ease of Installation   Performance   Style  
Quality materials great value

installed new chain and sprockets on my sons crf50. great fit and looks great. nice bang for the buck.

Motoman9
New River, AZ, USA
Durability   Ease of Installation   Performance   Style  
Excellent combo package for the price!

Bought these for my sons KTM 85sx and I have to say they are by far the most durable and stylish sprocket/chain combo and the price is great! Thanks to Motosport I can get everything I need and want at an affordable price! Thanks!

Ranman
Verified Purchaser
Corvallis, OR, USA
Durability   Ease of Installation   Performance   Style  
Good sprockets

The sprockets are light and haven't cupped significantly after several rides. They installed easily on my yz125.

Tippa
Verified Purchaser
Pierre Part, LA 70339, USA
Durability   Ease of Installation   Performance   Style  
Good Product for the Money

I bought this for my son's KTM 65. It fit perfectly and streched the power band out just as expected.

zulossa
Verified Purchaser
Mission Hills CA
Durability   Ease of Installation   Performance   Style  
Sunstar sprockets

OEM finish, best quality, best price.

Charlie
Verified Purchaser
Central Oregon
Durability   Ease of Installation   Performance   Style  
Good deal

Everything fit with minor effort, can't wait to get back on the trail.

KTMoffroad
Top 1000 Contributor
Salem, SC
Choose wisely!

Combo is great, but be aware of the length of chain you need! several of the chain options are different lengths and they don't all work all the time. Ordered 120 link chain for a KTM 85xc and needed the 130 renthal chain... Should have checked, but assumed all listed would work and had to return, etc. Just added some time, but Motosport was great on the return.

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