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Motorcycle Chain 420 Global Supplier - Direct Sale
This 420 specification chain provides excellent power transmission efficiency for 3-8KW motors with high-strength impact-resistant design and ultra-lightweight structure. As the source manufacturing plant of the deep-cultivated industry for 33 years, SFR skips the intermediate links and supplies directly to ensure that you can provide highly competitive ex-factory prices, strict quality control and faster order delivery.
high quality alloy steel Material
18.5 kN or more Tensile strength
no ring or SO seal Seal form
2 to 8 kW Applicable motor power
70 kilometers per hour Top speed
lightweight impact design Chain characteristics
Our products
The Motorcycle chain 420 is the 1 kind of transmission component precision manufactured from alloy steel. It is mainly used to transmit the power of the motor or engine to the rear wheels. It is suitable for enlightening off-road vehicles and light sports electric motorcycles.
motorcycle chain 420 Features
Anti-impact structure design
By optimizing the hardness of the pin shaft and the matching accuracy of the sleeve, the impact resistance of the chain is improved when the chain is subjected to the instantaneous high torque explosion of the motor, and the risk of fracture in high-strength competitive cross-country is significantly reduced.
Ultra-lightweight weight reduction solution
The 420 series adopts a narrow and thin-slice design to reduce its own weight under the premise of ensuring strength, effectively reduce moment of inertia, and improve vehicle endurance and acceleration response.
High-precision meshing noise reduction
with special tooth profile optimization, the running noise of the chain can be controlled between 75 and 79 decibels, which solves the sensitive problem of electric motorcycle users to abnormal noise of the transmission system and improves the high-level feel of the whole vehicle.
Extremely low power loss
The precise manufacturing process reduces the frictional resistance between chain links, ensuring that electricity can be converted into driving force more efficiently, which can increase the transmission efficiency by about 5% compared to ordinary chains.
Long-term wear-resistant life
the use of advanced heat treatment process to enhance the surface hardness, combined with efficient lubrication to maintain technology, so that the chain in bad road conditions can still maintain a low elongation.
Highly adaptable transmission system
perfectly match the motor discharge characteristics of different power sections of 1-8KW, and extend the maintenance period of the vehicle transmission system through gentle power output docking.
Detailed Structured Specifications of Motorcycle Chain 420
| Parameter Items | 420 Standard Model | 420 Pro Competition | 420 SO Sealed Type |
| Recommended application | Enlightenment Off-Road Vehicle | Light sports car | Off-road racing vehicles |
| motor adapter | 2-5KW | 3-8KW | 3-6KW |
| Design Core | Solid and durable | Improved wear resistance | Low power consumption and long lifespan |
| Operating decibels | 76 decibels | 75 decibels | 79 decibels |
| Anti-wear technology | Reinforced sleeve | Ultra-high strength pin | Self-lubricating sealing ring |
| Maximum speed | 60 km/h | 60 km/h | 70 km/h |
motorcycle chain 420 Applicable Crowd
Professional electric motor manufacturer
It is suitable for developing intelligent electric terminal enterprises driven by 2KW to 8KW motors, providing them with a complete transmission system matching scheme from chain to buffer sprocket.
Cross-country motorcycle race team
for the professional teams of youth cross-country race and competitive enlightenment race, provide high-strength and light-weight competitive-level sealing chains of 420 specifications to ensure the performance of the race.
Global motorcycle spare parts dealers
suitable for wholesalers who are looking for source factories with long historical background, high patent reserves and ISO system certification to purchase in large quantities.
Individual player modification studio
for electric motorcycle modification enthusiasts who pursue extreme performance improvement and need to upgrade the original car chain to a low resistance and low noise transmission system.
motorcycle chain 420 raw materials/materials
SFR uses high-grade alloy steel as the basic raw material, its pin shaft after carbon-nitrogen co-penetration treatment to obtain a very high surface hardness, the chain plate is selected after precision cold-rolled process of high-strength steel. The rigorous heat treatment process ensures that the material has excellent fatigue resistance and toughness in complex off-road and high torque electric drive environments.motorcycle chain 420 life and after-sales service
After-Sales Service
SFR provides a full range of technical support, pre-sales can assist in the motor and transmission ratio matching test; after-sales for bulk purchase customers to provide quality traceability report. If there are any defects in the production process, we promise to respond in time and provide technical solutions.
Service Life and Product Maintenance
Under normal maintenance and standard load, the expected service life of this product is significantly better than that of ordinary standard chains. It is recommended to check the lubrication every 500 kilometers. Users should regularly clean up the sediment and check the tension to ensure that the chain is always in the best operating condition.
factory and certificate
certificate
FAQ And Contact Us
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.
Can the 420 chain be mounted directly on the sprocket of the 428?
No. The internal width and roller diameter of the 420 and 428 chains are different. Forced mixing will accelerate the wear of the sprocket and cause the risk of chain detachment. The corresponding specifications must be matched.
What are the specific improvements to the 420 Pro Competitive compared to the standard version?
The Competitive version significantly improves the impact resistance and overall tensile strength of the pin shaft while ensuring lightweight, making it more suitable for off-road scenarios with frequent jumps and instant acceleration.
Is the sealing chain (SO type) really maintenance-free?
Although the sealing chain is kept lubricated by the internal sealing ring and prolongs its life, it is still recommended to clean the dust and mud on the surface of the chain regularly to prevent damage to the sealing ring.
How to judge whether my electric motorcycle is suitable for 420 specification chain?
Generally, according to the motor power, 1-8KW light sports electric motorcycle or enlightenment off-road vehicle generally adopts 420 specifications, please refer to the technical specification of the vehicle for details.
How does the chain noise performance of SFR?
Through tooth profile optimization and lightweight design, our 420 series has a running noise of 75 to 79 decibels, which is very suitable for electric motorcycle products that require silence.
Do you offer matching sprockets?
Yes, we offer our patented combination buffer sprockets that, when used with 420 chains, provide a smoother mesh and further reduce system noise.
Please feel free to contact us. We look forward to hearing from you.
Motorcycle Chain 420 Global Supplier - Direct Sale
This 420 specification chain provides excellent power transmission efficiency for 3-8KW motors with high-strength impact-resistant design and ultra-lightweight structure. As the source manufacturing plant of the deep-cultivated industry for 33 years, SFR skips the intermediate links and supplies directly to ensure that you can provide highly competitive ex-factory prices, strict quality control and faster order delivery.
high quality alloy steel
Material
18.5 kN or more
Tensile strength
no ring or SO seal
Seal form
motorcycle chain 420 Features
Anti-impact structure design
By optimizing the hardness of the pin shaft and the matching accuracy of the sleeve, the impact resistance of the chain is improved when the chain is subjected to the instantaneous high torque explosion of the motor, and the risk of fracture in high-strength competitive cross-country is significantly reduced.
Ultra-lightweight weight reduction solution
The 420 series adopts a narrow and thin-slice design to reduce its own weight under the premise of ensuring strength, effectively reduce moment of inertia, and improve vehicle endurance and acceleration response.
High-precision meshing noise reduction
with special tooth profile optimization, the running noise of the chain can be controlled between 75 and 79 decibels, which solves the sensitive problem of electric motorcycle users to abnormal noise of the transmission system and improves the high-level feel of the whole vehicle.
Extremely low power loss
The precise manufacturing process reduces the frictional resistance between chain links, ensuring that electricity can be converted into driving force more efficiently, which can increase the transmission efficiency by about 5% compared to ordinary chains.
Long-term wear-resistant life
the use of advanced heat treatment process to enhance the surface hardness, combined with efficient lubrication to maintain technology, so that the chain in bad road conditions can still maintain a low elongation.
Highly adaptable transmission system
perfectly match the motor discharge characteristics of different power sections of 1-8KW, and extend the maintenance period of the vehicle transmission system through gentle power output docking.
Detailed Structured Specifications of Motorcycle Chain 420
| Parameter item | Specifications/Description | Notes |
| Standard Sizes | BQ, NQ, HQ, PQ, PQ3 | Compliant with DCDMA international standards |
| Cutter Size | 1308 (13mm), 1613 (16mm), 1913 (19mm) | Select based on the hardness of the formation |
| Blade Count | 3 – 6 wings | Few-bladed drills are suitable for fast drilling in soft rock, while multiple-bladed drills are suitable for hard rock. |
| Applicable lithology (Formation) | Mudstone, sandstone, limestone, shale, salt rock | Mohs hardness 3-7 (f < 12) |
| Body Material | Matrix Body / Steel Body | The tire body is wear-resistant, and the steel body is impact-resistant. |
| Back Rake | 15° – 25° adjustable | The larger the angle, the stronger the impact resistance; the smaller the angle, the faster the cutting speed. |
| Connection thread | API Regular, IF, or special core-taking tube thread | After high-frequency quenching treatment, it is fatigue resistant. |
| Recommended WOB (Working Weight on Drill) | 6 – 15 kN (depending on drill bit diameter) | Compared to impregnated diamond bits, it requires less drilling pressure. |
motorcycle chain 420 Applicable Crowd
Professional electric motor manufacturer
It is suitable for developing intelligent electric terminal enterprises driven by 2KW to 8KW motors, providing them with a complete transmission system matching scheme from chain to buffer sprocket.
Cross-country motorcycle race team
for the professional teams of youth cross-country race and competitive enlightenment race, provide high-strength and light-weight competitive-level sealing chains of 420 specifications to ensure the performance of the race.
Global motorcycle spare parts dealers
suitable for wholesalers who are looking for source factories with long historical background, high patent reserves and ISO system certification to purchase in large quantities.
Individual player modification studio
for electric motorcycle modification enthusiasts who pursue extreme performance improvement and need to upgrade the original car chain to a low resistance and low noise transmission system.
motorcycle chain 420 raw materials/materials
SFR uses high-grade alloy steel as the basic raw material, its pin shaft after carbon-nitrogen co-penetration treatment to obtain a very high surface hardness, the chain plate is selected after precision cold-rolled process of high-strength steel. The rigorous heat treatment process ensures that the material has excellent fatigue resistance and toughness in complex off-road and high torque electric drive environments.motorcycle chain 420 life and after-sales service
After-Sales Service
Service Life and Product Maintenance
Know Us and Contact Us
Get a Free Quote Today.
FAQ
Can the 420 chain be mounted directly on the sprocket of the 428?
No. The internal width and roller diameter of the 420 and 428 chains are different. Forced mixing will accelerate the wear of the sprocket and cause the risk of chain detachment. The corresponding specifications must be matched.
What are the specific improvements to the 420 Pro Competitive compared to the standard version?
The Competitive version significantly improves the impact resistance and overall tensile strength of the pin shaft while ensuring lightweight, making it more suitable for off-road scenarios with frequent jumps and instant acceleration.
Is the sealing chain (SO type) really maintenance-free?
Although the sealing chain is kept lubricated by the internal sealing ring and prolongs its life, it is still recommended to clean the dust and mud on the surface of the chain regularly to prevent damage to the sealing ring.
How to judge whether my electric motorcycle is suitable for 420 specification chain?
Generally, according to the motor power, 1-8KW light sports electric motorcycle or enlightenment off-road vehicle generally adopts 420 specifications, please refer to the technical specification of the vehicle for details.
How does the chain noise performance of SFR?
Through tooth profile optimization and lightweight design, our 420 series has a running noise of 75 to 79 decibels, which is very suitable for electric motorcycle products that require silence.
Do you offer matching sprockets?
Yes, we offer our patented combination buffer sprockets that, when used with 420 chains, provide a smoother mesh and further reduce system noise.