Best Chain For Motocross: 10 Off-Road Options Compared

#1 · Best Overall

1. RK GB520MXU Chain

• Load Capacity: 9000 lb
• Weight: 3.6 lb

Best for: Sealed 520 chain for racing.

Why it ranks #1: Designed for professional motocross racing, it pairs UW-sealing rings with a listed 9,000-pound load capacity and a 114-link 520 format.

RK's UW sealing rings make the GB520MXU-114 a sealed-ring 520 chain aimed at professional motocross racers, a distinction that separates it from the non-sealed options here. Its stated 9,000-pound maximum tensile strength and 114-link length add concrete specifications for riders comparing racing-chain requirements.

RK describes the chain as its lightest sealed-ring motocross chain and says the UW rings support consistent power delivery and increased chain life. The listed 9,000-pound load capacity and heat-treated components using RK's HIT process add details for buyers weighing strength and construction. Its 114-link length is a key fit consideration for installation, while the 520 series identifies the chain format. Confirm the required length against the drivetrain before choosing.

Skip it if you need a non-sealed 520 chain; DID 520DZ2 is a non-sealed option listed for motorcycles up to 450cc.

Choose this RK for a racer seeking a sealed 520 chain with UW rings and a listed 9,000-pound capacity. Its 114-link length still needs to match the motorcycle's setup, and the product is positioned toward professional motocross use.

Listed on Amazon as: RK Racing Chain GB520MXU-114 (520 Series) Gold 114 Link Extreme Performance Narrow Clearance Off-Road and ATV UW-Ring Chain with Connecting Link

#2 · Best Non-Sealed 520

2. DID 520 DZ2 Chain

• Weight: 3.83 lb

Best for: Non-sealed 520 motocross chain.

Why it ranks #2: Its listing identifies it as a lightweight, high-performance motocross chain for bikes up to 450cc, with 120 links and non-sealed construction.

DID specifies the 520DZ2 for off-road riding and rates it for motorcycles and ATVs up to 450cc, giving motocross buyers a clear displacement boundary. Its 120-link, non-sealed format is described as lightweight and high-performance, with projected wear life stated as twice that of the 520DZ under similar conditions.

The listing says the redesigned 520DZ2 has projected wear life twice that of the 520DZ and four times that of a standard chain under similar conditions. Those comparisons are tied to the supplied description, not a universal service interval. Its 520 series and 120-link length provide fit details, while the stated limit of up to 450cc clarifies the intended engine range. Because it is non-sealed, the listing identifies regular maintenance as relevant for this chain type.

Skip it if you need sealed-ring construction; RK Racing Chain GB520MXU-114 specifies UW sealing rings in a 520 motocross chain.

This DID suits off-road riders with a motorcycle or ATV up to 450cc who want a 520 non-sealed chain and the listed 120-link length. Its maintenance needs and displacement rating are important limits to keep in view.

Listed on Amazon as: DID 520 DZ2 Chain (120 Links) (Gold)

#3 · Best 420 MX/SX

3. RK GB420MXZ Chain

• Load Capacity: 5E+3 lbf tensile
• Material: Alloy Steel

Best for: 420 MX and SX racing chain.

Why it ranks #3: Specifically recommended for motocross and supercross racing, this gold 420-series chain has 112 links and alloy-steel construction.

Its stated 420-series format and 112-link length make the RK GB420MXZ a specific option for motocross and supercross applications. The alloy-steel, non-O-ring chain includes a connecting link, giving riders a defined chain type and joining component for a compatible off-road or street setup.

RK lists motocross and supercross racing among the recommended uses, alongside high-performance off-road and street riding. That broad use guidance helps buyers assess whether the chain's intended role matches their riding. Its 420 series and 112-link length provide concrete compatibility details to compare with the existing drivetrain, and the alloy-steel construction specifies its material. A connecting link is included for joining the chain; the listing does not state a maximum engine displacement.

Skip it if you require sealed-ring protection; RK Racing Chain GB520MXU-114 lists UW sealing rings, though it is a 520-series chain.

This RK suits riders seeking a 420 chain for motocross, supercross, or other listed off-road use, with an included connecting link. Its non-O-ring construction and 112-link length are important boundaries to weigh against the bike's requirements.

Listed on Amazon as: RK Racing Chain GB420MXZ-112 (420 Series) Gold 112 Link Heavy Duty MX/SX Racing Non O-Ring Chain with Connecting Link

#4

4. RK GB420MXZ4 Chain

• Weight: 2.25 lb

Best for: Heat-treated 420 motocross chain.

Why it ranks #4: Made for serious motocross racers, it has a 120-link 420 format, heat-treated components, chromoly steel construction and oversized alloy pins.

Heat-treated components, chromoly steel construction, seamless rollers and bushings, and oversized alloy pins define the RK GB420MXZ4 for serious motocross use. Its 420 series and 120-link length give buyers a specific format to match against their off-road drivetrain before installation.

RK describes heat treatment across the components as supporting high-performance durability, while chromoly steel construction and oversized alloy pins are named strength-related construction details. Seamless rollers and bushings further specify how this chain is made. The listing identifies off-road application, 420 chain type, and 120 links, so buyers can check the format and length against their motorcycle's requirements. The supplied details do not state a load capacity or a sealing type.

Skip it if you need a stated load capacity and sealed-ring format; RK Racing Chain GB520MXU-114 lists both, in a 520 chain.

This RK suits motocross riders seeking a 420 off-road chain with heat-treated components and specified chromoly construction. Its 120-link length should match the setup, while the listing leaves load capacity and sealing type unspecified.

Listed on Amazon as: RK Racing Chain Gold 420 MXZ4 Heavy Duty Chain

#5 · Best Impact Features

5. Renthal 520 R1 Chain

• Load Capacity: 4721 lbs tensile
• Material: Metal
• Weight: 0.27 g

Best for: Impact-focused 520 off-road chain.

Why it ranks #5: This off-road 520 chain lists shot-peened alloy-steel side plates, chromised bearing pins and chamfered inner links, with a 120-link length.

Shot-peened alloy-steel side plates give the Renthal 520 R1 Race Chain a stated focus on high tensile strength and impact-load resistance, relevant to the stresses of off-road riding. Its 120-link 520 format and gold side plates make the chain's length and finish clear at a glance.

Renthal says chamfered inner links reduce the chance of chain derailment, while extended bushings reduce friction between the inner and outer link plates to maximize power output. Chromised bearing pins are specified for wear resistance, and gold side plates help prevent corrosion. Together, these named details speak to chain operation and durability in off-road use. The 520 pitch and 120-link length remain essential fit checks against the motorcycle's current chain requirements.

Skip it if you need a listed 9,000-pound load capacity; RK Racing Chain GB520MXU-114 specifies that figure for its sealed 520 chain.

This Renthal fits off-road riders prioritizing specified impact resistance, reduced friction, and wear-focused details in a 520 chain. Its 120-link length and 4,721-pound listed tensile capacity are boundaries to consider when matching the motorcycle and riding demands.

Listed on Amazon as: Renthal 520 R1 Race Chain (120 Links) (Gold)

#6

6. DID 520DZ Chain

• Weight: 3.8 lb

Best for: Gold 520 non-sealed replacement.

Why it ranks #6: A gold, 120-link 520 non-O-ring chain from DID, it offers a high-performance off-road option for riders whose bikes require this format.

Its 120-link length and included connecting link give this DID 520DZ-120 a clear replacement-chain starting point for riders working with a 520 setup. The gold-finish, non-O-ring chain keeps the choice straightforward for motocross buyers seeking a conventional, non-sealed drive chain rather than a sealed-ring design.

The 520 designation identifies the chain series, while the 120-link length gives buyers a concrete length to compare against their existing setup. Its connecting link is included, so the package provides the joining component for installation. The non-O-ring construction identifies the chain as non-sealed, a relevant distinction when choosing a chain format for off-road riding. Check that the chain series and required length match the motorcycle before fitting; the supplied information does not specify a maximum engine displacement.

Skip it if you need a sealed 520 chain; RK Racing Chain GB520MXU-114 specifies UW sealing rings for motocross use.

Choose this DID chain when your motocross setup calls for a 520 non-O-ring chain and 120 links, with a connecting link included. Its key boundary is the non-sealed construction, so it is not the pick for riders requiring sealed-ring technology.

Listed on Amazon as: DID (520DZ-120) Gold 120 Link High Performance DZ2 Series Non-O-Ring Chain with Connecting Link

#7

7. Pro Taper 420MX Chain

• Load Capacity: 5E+3 lb
• Material: Alloy Steel
• Weight: 2.1 lb

Best for: Long 420 chain for four-stroke off-road.

Why it ranks #7: Listed for off-road motocross use with four-stroke engines, this alloy-steel 420 chain has a 5,000-pound load capacity.

The 134-link length is the defining detail of this Pro Taper 420MX Premium Gold Series chain, giving off-road riders a longer listed chain length to compare with their setup. Its stated recommendation for motocross use with four-stroke engines narrows the intended application beyond a general-purpose chain.

Pro Taper specifies alloy steel and a 420-series model, giving buyers material and chain-series details to compare with their motorcycle's current setup. The recommended use is off-road motocross with four-stroke engines, a clear application boundary for riders assessing suitability. At 134 links, its listed length is longer than many replacement needs may call for, so compare the required length before installation. The supplied listing does not identify a connecting link or a sealing type.

Skip it if you need a listed connecting link; DID 520DZ-120 includes one, but uses a different 520 series and 120 links.

Consider this Pro Taper for a four-stroke motocross or off-road application where a 420 chain and 134 links match the setup. The supplied details leave the joining-link and sealing formats unspecified, so those details may affect your choice.

Listed on Amazon as: Pro Taper 420MX Premuim Gold Series Chains – Lg. 134

#8 · Best 415 Option

8. Pro Taper PT415MX Chain

• Load Capacity: 4945 lbf
• Material: Alloy Steel
• Weight: 1.8 lb

Best for: Compact 415 off-road chain.

Why it ranks #8: This 120-link chain targets off-road use and includes a clip-style master link; its 415 pitch makes it relevant only to compatible bikes.

The 415MX size sets this Pro Taper apart from the more common 420 and 520 options in this roundup, giving riders who need a 415 chain a specifically sized off-road choice. It comes with 120 links and a clip-style master link for joining the chain.

Pro Taper lists alloy-steel construction, a 415MX model, and a 120-link length, giving buyers useful details to match against their drivetrain. The included clip-style master link provides a specified joining method for installation. This is a non-sealed chain, and the listing notes that non-sealed chains require more regular maintenance than sealed versions and are mainly recommended for off-road use. That makes upkeep and riding context relevant parts of the decision.

Skip it if you prefer a sealed chain with fewer maintenance demands; RK Racing Chain GB520MXU-114 lists UW sealing rings.

This Pro Taper is for off-road riders whose setup calls for a 415MX chain and who want a clip-style master link included. Its non-sealed construction means more regular maintenance than sealed-chain versions, a meaningful ownership consideration.

Listed on Amazon as: Pro Taper Gold Series PT415MX Chain (120 Link)

#9

9. Zhenghe 520 Gold Chain

• Load Capacity: 5000 lb
• Material: Metal

Best for: Broad-fit 520 chain for listed bikes.

Why it ranks #9: The listing names several 250cc and 300cc motocross models and gives a 5,000-pound load capacity, but provides less construction detail.

The stated compatibility list names 250cc and 300cc motorcycles including DRZ250, RMZ250, KX250, CRF250R, and YZ250F, giving this Zhenghe chain a concrete fit starting point. Its 520 size, 120 links, and included connecting master link spell out key setup details.

The title identifies a 520H heavy-duty roller chain with 120 links, while the product details list a 5,000-pound load capacity. Those specifications help buyers compare chain format, length, and capacity with their current requirements. The included connecting master link supplies the joining component, and the listed compatibility also names KX450F, CRF450R, and YZ450F. The listing describes broad compatibility, but the specific chain requirements of the motorcycle remain relevant before installation.

Skip it if you prioritize a listed 9,000-pound capacity; RK Racing Chain GB520MXU-114 specifies that figure for a sealed 520 chain.

This Zhenghe is for riders whose motorcycle appears among its listed compatible models and whose setup calls for a 520H, 120-link chain. Its 5,000-pound stated capacity and listed-fit details are relevant boundaries when selecting a replacement.

Listed on Amazon as: 520 Gold Motorcycle Chain 120 Links with Connecting Master Link 520H Heavy Duty Drive Bike Roller Chain for 250cc 300cc Series DRZ250 RMZ250 KX250 KX450F CRF250R CRF450R YZ250F

#10

10. RK M520HD Chain

• Weight: 4.2 lb

Best for: Pre-stretched 520 chain up to 400cc.

Why it ranks #10: This is a 120-link, non-O-ring 520 chain, but its listed maximum is 400cc and its description emphasizes street and general off-road use.

RK's pre-stressed and pre-stretched construction is stated to support better performance with fewer adjustments, making this 520 chain relevant to riders who value reduced adjustment frequency. The 120-link standard non-O-ring format includes a clip-type connecting link and is listed for applications up to 400cc.

The listing specifies Japanese steel, two-point riveted pins, and curled bushings, giving buyers concrete construction details. RK says the chain is pre-stressed and pre-stretched for better performance with fewer adjustments, a practical maintenance consideration. Its clip-type master link provides a specified joining method, while the listed maximum of 400cc sets a clear application boundary. The 520 designation and 120-link length still need to correspond with the motorcycle's required chain setup.

Skip it if you ride a motorcycle above 400cc; DID 520DZ2 is listed for motorcycles and ATVs up to 450cc.

This RK suits riders seeking a 520 non-O-ring chain for a listed application up to 400cc, with a clip-type link and fewer stated adjustment needs. Its displacement limit and 120-link length define the fit boundaries.

Listed on Amazon as: RK Racing Chain M520HD-120 (520 Series) 120-Links Standard Non O-Ring Chain with Connecting Link