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Made of 40Mn high-grade alloy steel, through pre-stretching and four-sided riveting process, the tensile strength exceeds 38kN. With X-Ring sealing technology, it not only improves the wear resistance by 2 times compared with ordinary chains, but also can withstand the instantaneous impact load during cross-country jumping, providing bulk purchase.
≥ 38.5kN
Tensile
15.875mm
Pitch
X-Ring
Sealing
The use of special 40Mn alloy steel plate, after carbon-nitrogen co-heat treatment, so that the average tensile strength of the chain reached more than 38.5kN, far exceeding the ISO 10190 standard, effectively prevent the cross-country climbing or violent acceleration of the chain.
Each 520 dirt bike chain is pre-stretched with 1/3 breaking load before leaving the factory to eliminate the initial ductility of metal materials, control the initial elongation of the new chain within 0.05, and reduce the adjustment frequency after the user’s initial installation.
Compared with ordinary O-Ring, the X-Ring four-point contact design increases the sealing area, can tightly lock the vacuum grease between the pin shaft and the sleeve, prevent sediment intrusion, and extend the service life of the chain by 1.5 to 2 times, especially suitable for muddy off-road environment.
The surface of the pin shaft is chromed, and the surface hardness reaches above HV1800, which greatly reduces the friction coefficient with the inner wall of the sleeve. This hardened layer can effectively resist wear, even in the lack of lubrication of the harsh conditions can maintain smooth operation.
The four-sided riveting technology is used to process the pin shaft head. Compared with the traditional two-sided riveting, the thrust load bearing capacity is increased by 25%, which greatly enhances the lateral holding force of the chain plate and prevents the chain plate from falling off during high-speed bending or lateral force.
Cold extruded solid sleeve is used to replace the rolled sleeve, and the roundness tolerance is controlled within 0.01mm. This not only ensures that the sheath and the roller fit more closely, but also fundamentally solves the problem of deformation and fracture of the traditional rolled sleeve under heavy load.
| Parameter item | Specifications | Notes |
| Product Model | 520 Dirt Bike Chain | Compliant with ANSI/ISO standards |
| Pitch | 15.875 mm (5/8″) | Standard 520 size |
| Inner Width | 6.35 mm (1/4″) | Roller width |
| Roller Diameter | 10.16 mm | Maximum value |
| Pin Diameter | 5.24 mm | Surface hardening treatment |
| Pin Length | 20.30 mm | Total length after riveting |
| Plate Thickness | 2.2 mm / 2.2 mm | Inner link plate / outer link plate |
| Tensile strength | ≥ 38.5 kN (8,655 lbs) | Mean breaking load |
| Weight per 100 sections | Approximately 1.05 kg | Contains lubricating oil |
| Seal Type | X-Ring / O-Ring optional | Material: NBR/hydrogenated nitrile butadiene rubber |
| Master Link connection type | Rivet type / Clip type | Riveting is recommended for capacities of 500cc and above. |
For professional teams competing in Motocross or Supercross races. The lightweight design and high tensile strength of the 520 dirt bike chain can meet the power transmission requirements of the car at extremely high speeds without increasing the unsprung mass.
For clubs that often organize long-distance forest road crossings or endurance races. The long-term sealing performance of the X-Ring ensures that the chain still maintains a good lubrication state after the vehicle passes through complex road conditions such as mire and streams, and does not require frequent midway maintenance.
For rental merchants with a large number of vehicles. High wear resistance and low maintenance frequency mean a significant reduction in operating costs. This chain can withstand the additional pressure caused by the novice’s improper operation (such as gear shifting), reducing vehicle downtime and maintenance time.
Suitable for wholesalers focusing on 250cc to 650cc displacement off-road motorcycle modification parts. The product conforms to the international standard size, and can be perfectly adapted to Honda, Yamaha, KTM and other mainstream brands of off-road vehicles, as a cost-effective OEM alternative.
Use a professional chain cutter to align the pin center of the old chain and push it out. Before installing the new 520 dirt bike chain, it is necessary to calculate the required number of links according to the length of the rear rocker arm of the vehicle and the number of teeth of the tooth plate, and cut off the redundant chain links, and pay attention to reserve the inner chain link end for connection.
Apply grease evenly to the pin and X-Ring of the main connecting buckle. For high-horsepower models above 450cc, it is strongly recommended to use a riveting tool to flare the pin head to the specified diameter (usually 0.5-0.7mm) to ensure absolute firmness.
After installation, measure the swing amplitude of the middle section of the lower chain when the motorcycle is on the ground (with heavy load). Generally, the standard swing range of off-road vehicles is 35mm-50mm (refer to the specific model manual). If it is too tight, the auxiliary shaft oil seal will be damaged, and if it is too loose, the chain may be detached.
The first 50 kilometers after the installation of the new chain is the running-in period to avoid severe acceleration. Although it is a sealed chain, after each cleaning of the vehicle or wading, it is still necessary to use a special O-Ring safety chain wax to spray the surface of the chain to prevent the outside of the roller from rusting.
certificate
Welcome to our Frequently Asked Questions page. We have compiled answers to common questions you may have, hoping to provide you with clear and quick solutions. If you cannot find the information you need here, please feel free to contact our customer support team.
Made of 40Mn high-grade alloy steel, through pre-stretching and four-sided riveting process, the tensile strength exceeds 38kN. With X-Ring sealing technology, it not only improves the wear resistance by 2 times compared with ordinary chains, but also can withstand the instantaneous impact load during cross-country jumping, providing bulk purchase.
Tensile
≥ 38.5kN
Pitch
15.875mm
Sealing
X-Ring
The use of special 40Mn alloy steel plate, after carbon-nitrogen co-heat treatment, so that the average tensile strength of the chain reached more than 38.5kN, far exceeding the ISO 10190 standard, effectively prevent the cross-country climbing or violent acceleration of the chain.
Each 520 dirt bike chain is pre-stretched with 1/3 breaking load before leaving the factory to eliminate the initial ductility of metal materials, control the initial elongation of the new chain within 0.05, and reduce the adjustment frequency after the user’s initial installation.
Compared with ordinary O-Ring, the X-Ring four-point contact design increases the sealing area, can tightly lock the vacuum grease between the pin shaft and the sleeve, prevent sediment intrusion, and extend the service life of the chain by 1.5 to 2 times, especially suitable for muddy off-road environment.
The surface of the pin shaft is chromed, and the surface hardness reaches above HV1800, which greatly reduces the friction coefficient with the inner wall of the sleeve. This hardened layer can effectively resist wear, even in the lack of lubrication of the harsh conditions can maintain smooth operation.
The four-sided riveting technology is used to process the pin shaft head. Compared with the traditional two-sided riveting, the thrust load bearing capacity is increased by 25%, which greatly enhances the lateral holding force of the chain plate and prevents the chain plate from falling off during high-speed bending or lateral force.
Cold extruded solid sleeve is used to replace the rolled sleeve, and the roundness tolerance is controlled within 0.01mm. This not only ensures that the sheath and the roller fit more closely, but also fundamentally solves the problem of deformation and fracture of the traditional rolled sleeve under heavy load.
| Parameter item | Specifications | Notes |
| Product Model | 520 Dirt Bike Chain | Compliant with ANSI/ISO standards |
| Pitch | 15.875 mm (5/8″) | Standard 520 size |
| Inner Width | 6.35 mm (1/4″) | Roller width |
| Roller Diameter | 10.16 mm | Maximum value |
| Pin Diameter | 5.24 mm | Surface hardening treatment |
| Pin Length | 20.30 mm | Total length after riveting |
| Plate Thickness | 2.2 mm / 2.2 mm | Inner link plate / outer link plate |
| Tensile strength | ≥ 38.5 kN (8,655 lbs) | Mean breaking load |
| Weight per 100 sections | Approximately 1.05 kg | Contains lubricating oil |
| Seal Type | X-Ring / O-Ring optional | Material: NBR/hydrogenated nitrile butadiene rubber |
| Master Link connection type | Rivet type / Clip type | Riveting is recommended for capacities of 500cc and above. |
For professional teams competing in Motocross or Supercross races. The lightweight design and high tensile strength of the 520 dirt bike chain can meet the power transmission requirements of the car at extremely high speeds without increasing the unsprung mass.
For clubs that often organize long-distance forest road crossings or endurance races. The long-term sealing performance of the X-Ring ensures that the chain still maintains a good lubrication state after the vehicle passes through complex road conditions such as mire and streams, and does not require frequent midway maintenance.
For rental merchants with a large number of vehicles. High wear resistance and low maintenance frequency mean a significant reduction in operating costs. This chain can withstand the additional pressure caused by the novice’s improper operation (such as gear shifting), reducing vehicle downtime and maintenance time.
Suitable for wholesalers focusing on 250cc to 650cc displacement off-road motorcycle modification parts. The product conforms to the international standard size, and can be perfectly adapted to Honda, Yamaha, KTM and other mainstream brands of off-road vehicles, as a cost-effective OEM alternative.
Use a professional chain cutter to align the pin center of the old chain and push it out. Before installing the new 520 dirt bike chain, it is necessary to calculate the required number of links according to the length of the rear rocker arm of the vehicle and the number of teeth of the tooth plate, and cut off the redundant chain links, and pay attention to reserve the inner chain link end for connection.
Apply grease evenly to the pin and X-Ring of the main connecting buckle. For high-horsepower models above 450cc, it is strongly recommended to use a riveting tool to flare the pin head to the specified diameter (usually 0.5-0.7mm) to ensure absolute firmness.
After installation, measure the swing amplitude of the middle section of the lower chain when the motorcycle is on the ground (with heavy load). Generally, the standard swing range of off-road vehicles is 35mm-50mm (refer to the specific model manual). If it is too tight, the auxiliary shaft oil seal will be damaged, and if it is too loose, the chain may be detached.
The first 50 kilometers after the installation of the new chain is the running-in period to avoid severe acceleration. Although it is a sealed chain, after each cleaning of the vehicle or wading, it is still necessary to use a special O-Ring safety chain wax to spray the surface of the chain to prevent the outside of the roller from rusting.