520 Dirt Bike Chain Factory Direct Price
This 520 dirt bike chain is made of high-strength alloy steel and four-point riveting technology, with a tensile strength of up to 8,500 lbs. It is specially designed for the extreme riding environment of high torque and sediment of off-road motorcycles, taking into account light weight and extreme durability, and is available for bulk purchase.
Important parameters of Septic Safe Laundry Sheets:
8500 lbs
Tensile Strength:
15.875mm
Chain pitch:
X-Ring/O-Ring
Seal Type:

520 Dirt Bike Chain Characteristics

Prevent sediment intrusion:
Compared with ordinary O-ring,X-Ring sealing ring reduces friction resistance by 40%, and has four sealing contact points, effectively preventing sediment intrusion and locking internal grease.

Reduce pin wear:
Seamless extruded solid bushings eliminate gaps in traditional rolled bushings, reduce pin wear, and extend the service life of the chain by more than 1.5 times.

The structural stability of the transmission system:
The pin head is riveted with four points of high precision to ensure that the chain plate will not shift or fall off under the impact of high torque, and the structural stability of the transmission system is significantly improved.

Enhanced metal fatigue resistance:
The full chain plate is subjected to high-intensity shot peening treatment to eliminate surface micro-stress, enhance metal fatigue resistance, and maintain structural integrity even under continuous high-frequency vibration.

Lightweight hollow design:
Under the premise of ensuring strength, through the design of the weight reduction holes of the inner chain plate, the weight of the entire 120 chain is controlled at about 1.6kg, which reduces the unsprung mass and improves the vehicle control response.

Ultra-high tensile strength:
heat-treated alloy steel pin shaft is adopted, the tensile strength is 25% higher than that of standard chain, and absolute anti-fracture guarantee is provided at the moment of cross-country leap landing or rapid acceleration.
Specifications Table
| Parameter item | Detailed Specifications |
| Product Model | 520 Dirt Bike Chain (Heavy Duty) |
| Chain pitch | 15.875 mm (5/8″) |
| Roller Diameter | 10.16 mm |
| Width between Inner Plates | 6.35 mm (1/4″) |
| Pin Length | 18.0 mm – 20.0 mm |
| Plate Thickness | 2.0 mm / 2.2 mm |
| Average tensile strength (Avg. Tensile Strength) | 38.5 kN (8500 lbs) |
| Seal Type | Teflon-coated X-Ring / O-Ring optional |
| Recommended engine displacement (Max CC) | 125cc – 450cc Off-Road / MX |
520 Dirt Bike Chain Comparison Point
This 520 dirt bike chain adopts aviation grade SCM435 alloy steel pin shaft and is matched with precision cold extrusion process to ensure that the dimensional tolerance of each 1 chain is controlled within ± 0.01mm. Under the same riding conditions, its elongation is 30% lower than the common industry standard, which greatly reduces the frequency of users adjusting the chain tension.


Prevention of chain breakage risk:
aiming at the problem that the chain is easy to break when the off-road vehicle shifts violently or leaps, the 8500 lbs high tensile strength redundancy design eliminates the risk of engine shell damage caused by chain breakage.

To solve the problem of excessive sand wear:
in view of the pain point of wear caused by fine gravel entering the bushing during mud riding, a high elastic X-ring sealing ring is adopted to form a closed-loop lubrication space and block more than 99% of external impurities.

Reduce power transmission loss:
Solve the problem of high rotation resistance of inferior chains and eating engine horsepower. Through the cooperation of solid bushings and high-precision rollers, the transmission efficiency is maintained above 98%.
520 Dirt Bike Chain life and after-sales service

Product life:
Under routine maintenance, the expected service life of this 520 seal chain is 20,000 – 30,000 kilometers. It is recommended to use professional cleaning agent to clean up and re-spray chain oil every 500 kilometers or after riding in extreme mud to keep the sealing ring active.

Pre-sales and after-sales service:
We provide customized packaging solutions and OEM services for wholesalers. All products are accompanied by ISO9001 quality inspection reports. Provide a 12-month quality warranty, and implement a 1:1 exchange policy for any material defects or manufacturing process problems.



520 Dirt Bike Chain raw materials/materials
The core components of this product are made of the industry’s top chromium-molybdenum alloy steel (SCM435/SCM440). The inner/outer chain plate is made of high carbon alloy steel, which is treated by step quenching process, and has high surface hardness and core toughness. The sealing ring is made of nitrile rubber (NBR) composite material with high temperature resistance and oil corrosion resistance, which can maintain excellent sealing performance at -40 ℃ to 120 ℃.
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Answer: Yes, this product fully complies with the standard 520 specifications (pitch 15.875mm), and is suitable for all standard 520 off-road motorcycle front and rear sprockets on the market.
Answer: The sealing chain comes with grease and is locked by the sealing ring. The service life is 2-3 times that of the non-sealed chain, which is more suitable for off-road riding in harsh environments.
Answer: When the chain stretches more than 1% or there are obvious dead joints, the sealing ring falls off, and the side plate is excessively rusted, it should be replaced in time to ensure driving safety.
Answer: High-strength joints (Master Link) are distributed by default, which is convenient for users to install by themselves. For high-strength track requirements, we also provide riveted joints for selection.
Answer: The tensile strength of this product is as high as 8500 lbs. It is recommended for professional off-road motorcycles or MX racing cars from 125cc to 450cc.
Answer: Yes. We provide gold, silver, blue, red and other plating colors, and can cut 110, 114, 120 and other arbitrary section according to the needs of the model.
520 Dirt Bike Chain
This 520 dirt bike chain is made of high-strength alloy steel and four-point riveting technology, with a tensile strength of up to 8,500 lbs. It is specially designed for the extreme riding environment of high torque and sediment of off-road motorcycles, taking into account light weight and extreme durability, and is available for bulk purchase.

Tensile Strength:
8500 lbs
Chain pitch:
15.875mm
Seal Type:
X-Ring/O-Ring
520 Dirt Bike Chain Characteristics

Ultra-high tensile strength:
heat-treated alloy steel pin shaft is adopted, the tensile strength is 25% higher than that of standard chain, and absolute anti-fracture guarantee is provided at the moment of cross-country leap landing or rapid acceleration.

Prevent sediment intrusion:
Compared with ordinary O-ring,X-Ring sealing ring reduces friction resistance by 40%, and has four sealing contact points, effectively preventing sediment intrusion and locking internal grease.

Super concentrated high activity formula
The active substance content is ≥ 60%, which is 3-5 times that of ordinary liquid detergent. The weight of a single piece is only 3g, which can clean 5kg of clothes. While ensuring strong removal of oil stains and protein dirt, it greatly reduces the total amount of chemicals discharged into the septic tank.

Reduce pin wear:
Seamless extruded solid bushings eliminate gaps in traditional rolled bushings, reduce pin wear, and extend the service life of the chain by more than 1.5 times.

The structural stability of the transmission system:
The pin head is riveted with four points of high precision to ensure that the chain plate will not shift or fall off under the impact of high torque, and the structural stability of the transmission system is significantly improved.

Enhanced metal fatigue resistance:
The full chain plate is subjected to high-intensity shot peening treatment to eliminate surface micro-stress, enhance metal fatigue resistance, and maintain structural integrity even under continuous high-frequency vibration.
Specifications Table
| Parameter item | Detailed Specifications |
| Product Model | 520 Dirt Bike Chain (Heavy Duty) |
| Chain pitch | 15.875 mm (5/8″) |
| Roller Diameter | 10.16 mm |
| Width between Inner Plates | 6.35 mm (1/4″) |
| Pin Length | 18.0 mm – 20.0 mm |
| Plate Thickness | 2.0 mm / 2.2 mm |
| Average tensile strength (Avg. Tensile Strength) | 38.5 kN (8500 lbs) |
| Seal Type | Teflon-coated X-Ring / O-Ring optional |
| Recommended engine displacement (Max CC) | 125cc – 450cc Off-Road / MX |
520 Dirt Bike Chain Comparison Point
This 520 dirt bike chain adopts aviation grade SCM435 alloy steel pin shaft and is matched with precision cold extrusion process to ensure that the dimensional tolerance of each 1 chain is controlled within ± 0.01mm. Under the same riding conditions, its elongation is 30% lower than the common industry standard, which greatly reduces the frequency of users adjusting the chain tension.
In addition, the surface of the chain is treated with an electrophoretic gold/silver coating for common corrosion problems in off-road environments. After 96-hour salt spray test, its anti-rust ability is 3 times that of ordinary galvanized chain, which effectively solves the problem of chain rust after storage in humid areas or muddy track in the south.


Prevention of chain breakage risk:
aiming at the problem that the chain is easy to break when the off-road vehicle shifts violently or leaps, the 8500 lbs high tensile strength redundancy design eliminates the risk of engine shell damage caused by chain breakage.

To solve the problem of excessive sand wear:
in view of the pain point of wear caused by fine gravel entering the bushing during mud riding, a high elastic X-ring sealing ring is adopted to form a closed-loop lubrication space and block more than 99% of external impurities.

Reduce power transmission loss:
Solve the problem of high rotation resistance of inferior chains and eating engine horsepower. Through the cooperation of solid bushings and high-precision rollers, the transmission efficiency is maintained above 98%.
520 Dirt Bike Chain life and after-sales service

Product life:
Under routine maintenance, the expected service life of this 520 seal chain is 20,000 – 30,000 kilometers. It is recommended to use professional cleaning agent to clean up and re-spray chain oil every 500 kilometers or after riding in extreme mud to keep the sealing ring active.

Pre-sales and after-sales service:
We provide customized packaging solutions and OEM services for wholesalers. All products are accompanied by ISO9001 quality inspection reports. Provide a 12-month quality warranty, and implement a 1:1 exchange policy for any material defects or manufacturing process problems.
520 Dirt Bike Chain raw materials/materials
The core components of this product are made of the industry’s top chromium-molybdenum alloy steel (SCM435/SCM440). The inner/outer chain plate is made of high carbon alloy steel, which is treated by step quenching process, and has high surface hardness and core toughness. The sealing ring is made of nitrile rubber (NBR) composite material with high temperature resistance and oil corrosion resistance, which can maintain excellent sealing performance at -40 ℃ to 120 ℃.



Know Us and Contact Us
Get a Free Quote Today.
Answer: Yes, this product fully complies with the standard 520 specifications (pitch 15.875mm), and is suitable for all standard 520 off-road motorcycle front and rear sprockets on the market.
Answer: The sealing chain comes with grease and is locked by the sealing ring. The service life is 2-3 times that of the non-sealed chain, which is more suitable for off-road riding in harsh environments.
Answer: When the chain stretches more than 1% or there are obvious dead joints, the sealing ring falls off, and the side plate is excessively rusted, it should be replaced in time to ensure driving safety.
Answer: High-strength joints (Master Link) are distributed by default, which is convenient for users to install by themselves. For high-strength track requirements, we also provide riveted joints for selection.
Answer: The tensile strength of this product is as high as 8500 lbs. It is recommended for professional off-road motorcycles or MX racing cars from 125cc to 450cc.
Answer: Yes. We provide gold, silver, blue, red and other plating colors, and can cut 110, 114, 120 and other arbitrary section according to the needs of the model.

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