Pro Taper Chain And Sprocket Kit

• Product Details

  The MotoSport.com Pro Taper Chain And Sprocket Kit 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:

  MX Front Sprocket:

  Durable, lightweight front sprockets that are designed specifically to outlast and out-perform the competition. All of Pro Taper's sprockets are available for most make and model dirtbikes.

  • Precision broached and machined to the strictest standards.
  • Case-hardened chromoly steel.
  • Lightening holes keep sprocket lightweight.
  • Self-cleaning mud grooves prevent dirt build up.
  • Special coating helps retain strength and aids in wear resistance.
  • Etched teeth number for easy identification.

  MX RS Rear Sprocket:

  Pro Taper's Race Spec (RS) rear sprockets are of the highest quality when it comes to materials, manufacturing processes and self-cleaning technology. The RS sprockets boast more tooth surface area, therefore are proven to outlast the competition when it comes to longevity. This is the ultimate motocross race sprocket on the market.

  • Precision CNC machined to the strictest of standards.
  • 7075-T6 heat treated aluminum.
  • Proprietary mud groove design results in 44% more tooth surface area, increasing life of the sprocket dramatically.
  • Deep penetrating anodized finish.
  • Laser-etched teeth number for easy identification.

  Your Choice of Drive Chain:

  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
  Pro Taper 420 MX Chain	Non-sealed (standard)	5,000 pounds	125cc	N/A	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 NZ Chain	Non-sealed (standard)	5,740 pounds	N/A	2.20	Clip
  Pro Taper 428 MX Chain	Non-sealed (standard)	5,800 pounds	125cc	N/A	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)	8,220 pounds	250cc	3.54	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	750 cc	3.42	Clip
  D.I.D 520 ERV3 X-Ring Chain	X-ring	8,650 pounds	750cc	3.30	Rivet
  Pro Taper 520 XRC Chain	XRC-ring	8,500 pounds	750cc	N/A	Clip
  Pro Taper 520 MX Chain	Non-sealed (standard)	8,800 pounds	530cc	N/A	Clip
  Renthal 520 R3 O-Ring Chain	O-ring	7,644 pounds	500cc	3.36	Rivet and Clip
  Renthal 520 R1 Race Chain	Non-sealed (standard)	7,644 pounds	450cc	2.13	Clip

  Notes on Manufacturer Chain Type:

  • XRC-ring - Proprietary Pro Taper X-ring technology developed and tested exclusively to handle the extreme temperatures and conditions of off-road riding and racing.

  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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  Pro Taper 420 MX Chain:

  Designed, tested and produced with the highest level of Pro Taper quality. The gold series chains are purpose built for today's demanding 4-stroke bikes and ATV's. Pro Taper chains are manufactured with lightweight, ultra high-strength chromoly steel alloy for added performance and durability.

  • Premium gold series motocross style chain.
  • Lightweight, ultra high-strength chromoly construction.
  • All components use a Pro Taper exclusive heat-treating process to aid in the lifespan and durability of the chain.
  • Average tensile strength of 5,000 pounds.
  • Wear life index: 100.
  • Designed for 50 to 125cc applications.
  • 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.

  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

  Pro Taper 428 MX Chain:

  Designed, tested and produced with the highest level of Pro Taper quality. The gold series chains are purpose built for today's demanding 4-stroke bikes and ATV's. Pro Taper chains are manufactured with lightweight, ultra high-strength chromoly steel alloy for added performance and durability.

  • Premium gold series motocross style chain.
  • Lightweight, ultra high-strength chromoly construction.
  • All components use a Pro Taper exclusive heat-treating process to aid in the lifespan and durability of the chain.
  • Average tensile strength of 5,800 pounds.
  • Wear life index: 100.
  • Designed for up to 125cc applications.
  • 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.

  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.

  Return to Chart

  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.

  Return to Chart

  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.

  Return to Chart

  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.

  Return to Chart

  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.

  Return to Chart

  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 ERT3 Racing 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.

  • Features gold color plates.
  • 3% bigger pin diameter and 5% lighter than the former ERT.
  • For 125 - 450cc Motocross applications.
  • Average tensile strength of 8,300 pounds.
  • Weight (per 100 links): 2.99 pounds.
  • Includes a clip-style (RJ) master link.
  • Notes: Optional rivet-style (ZJ) master link available. 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 ATV2 X-Ring Chain:

  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.

  • Available for non-ATV applications.
  • Designed for ATV use.
  • Thicker plates than standard increase strength.
  • Low-friction X-ring sealing rings.
  • Better sealing surfaces and lubricant retention.
  • Average tensile strength of 8,430 pounds.
  • Wear life index: 3250.
  • Rated up to a maximum displacement of 750cc.
  • Weight (per 100 links): 3.42 pounds.
  • Includes a clip-style master link.

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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.

  Return to Chart

  Pro Taper 520 XRC Chain:

  Designed, tested and produced with the highest level of Pro Taper quality. The gold series chains are purpose built for today's demanding 4-stroke bikes and ATV's. Pro Taper chains are manufactured with lightweight, ultra high-strength chromoly steel alloy for added performance and durability.

  • Premium gold series XRC-ring motocross style chain.
  • Lightweight, ultra high-strength chromoly construction.
  • All components use a Pro Taper exclusive heat-treating process to aid in the lifespan and durability of the chain.
  • The XRC uses proprietary XRC-ring technology that was tested exclusively to handle the extreme temperatures and conditions of off-road riding and racing.
  • Average tensile strength of 8,500 pounds.
  • Designed for up to 750cc applications.
  • Includes a clip-style master link.

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  Pro Taper 520 MX Chain:

  Designed, tested and produced with the highest level of Pro Taper quality. The gold series chains are purpose built for today's demanding 4-stroke bikes and ATV's. Pro Taper chains are manufactured with lightweight, ultra high-strength chromoly steel alloy for added performance and durability.

  • Premium gold series motocross style chain.
  • Lightweight, ultra high-strength chromoly construction.
  • All components use a Pro Taper exclusive heat-treating process to aid in the lifespan and durability of the chain.
  • Average tensile strength of 8,800 pounds.
  • Wear life index: 100.
  • Designed for 125 to 530cc applications.
  • 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.

  Return to Chart

  Renthal 520 R3 O-Ring Chain:

  Renthal's R3-2 O-ring Chain is a high-strength sealed-ring chain with excellent impact load resistance designed specifically to withstand the stress found in off-road applications where an O-ring chain is desired. This chain is the choice where a combination of high strength, light weight and maximum power transfer are important considerations. The O-rings help extend chain life by retaining the special vacuum-injected grease near the critical pin area. Chain comes pre-stretched to shorten break-in period.

  • Nitrile O-rings extend chain life by retaining special vacuum-injected grease inside the chain joint.
  • Shot-peened alloy steel side plates for high tensile strength and maximum impact load resistance.
  • High-carbon alloy steel bearing pins for excellent resistance to wear.
  • Gold colored side plates help prevent corrosion.
  • Pre-stretched to enhance performance of the chain.
  • Available in 520 pitch only.
  • Average tensile strength of 7,644 pounds.
  • Wear life index: 750.
  • Maximum displacement (street / off-road): N/A / 500cc.
  • Weight (per 100 links): 3.36 pounds.
  • Each chain includes a pair of latex gloves for mess free installation.
  • Note: The Renthal R3-2 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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