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The 428H motorcycle chain is designed with thickened chain plates, which has excellent tensile strength and wear-resistant fatigue performance. It is the core component to ensure efficient transmission and high-load driving of vehicles. As a source manufacturer, Motomaxsfr has its own production base and the manufacturing capacity of the whole industry chain, eliminating all middlemen, and providing competitive ex-factory prices, strict quality control and faster batch delivery services for global buyers.
428H motorcycle chain is the 1 thickened roller chain used in motorcycle transmission system. It is installed between the front and rear sprockets and drives the rear wheels by transmitting motor or engine torque. It is made of high-quality alloy steel to ensure high-strength transmission.
428H motorcycle chain increases the thickness of the chain plate to 2.0mm, which is 30% thicker than ordinary 428 chain, effectively bears the impact force caused by frequent start and stop of high torque, and greatly reduces the risk of chain fracture.
the seamless sleeve manufactured by high-precision cold-drawn process and matched with high roundness pin shaft reduce the wear rate of chain and sprocket when meshing by 4% G, and it is not easy to stretch for long-term operation.
pin shaft and roller surface after deep carburizing heat treatment, the surface hardness of more than 55 Rockwell hardness, significantly improve wear resistance and fatigue resistance, effectively extend the overall service life of the chain.
The chain pitch tolerance is strictly controlled within 0.05mm to ensure that the 428H motorcycle chain is accurately meshed with the standard sprocket, reducing transmission noise and reducing power loss.
Each 428H motorcycle chain is pre-stretched with a rated load of 30% before leaving the factory to eliminate initial plastic deformation and ensure stable performance of finished products received by wholesalers.
The chain is subjected to deep hot oil immersion penetration treatment after assembly, so that the anti-rust lubricating grease evenly covers the inside of each joint, providing anti-corrosion protection for several months and reducing the frequency of early maintenance.
| Specification Parameters | 428H motorcycle chain detailed technical specifications |
| Standard chain model | 428H (Thickened Roller Chain) |
| Chain pitch | 12.70 mm |
| Roller Diameter | 8.51 mm |
| Width between Inner Plates | 7.85 mm |
| Pin Diameter | 4.51 mm |
| Plate Thickness | 2.00 mm |
| Average tensile strength | 20.6 kN |
| Main vehicle models (Application) | Traditional motorcycles and recreational electric scooters with an engine displacement of 125cc or less |
| Master Link (Connection Ring Type) | Spring clip type spring joint |
suitable for motorcycle aftermarket parts wholesalers around the world. This product offers standard specifications and consistent factory‑grade quality, perfectly aligning with wholesalers’ core procurement needs for bulk purchasing, high cost‑effectiveness, and long‑term supply chain stability.
suitable for the production of 2 kW to 5 kW, speed of about 60 kilometers per hour of electric scooter and light electric motorcycle manufacturers. The 428H motorcycle chain can efficiently handle the motor’s instantaneous torque output, meeting the compatibility standards of the drivetrain.
suitable for distributors with large offline repair networks and retail outlets. As a high‑frequency, universal consumable in the aftermarket, the thickened 428H boasts exceptional vehicle compatibility, helping repair shops reduce customer complaint rates.
suitable for OEM assembly factory looking for high standard transmission chain. We deliver precise dimensional tolerances and material certifications, meeting the stringent industrial standards of OEMs for assembly accuracy, vehicle‑wide transmission efficiency, and durability.
The core raw materials of 428H motorcycle chain are all high-toughness alloy structural steel produced by large domestic steel mills. Among them, the chain plate part is made of high-strength cold-rolled steel strip, which has excellent impact resistance and ductility. The pin shaft and sleeve part are made of high-quality alloy steel containing chromium, molybdenum and other elements. After precision cold drawing and seamless extrusion molding, the internal organization of the whole transmission chain is guaranteed to be uniform, and it still has excellent structural stability when bearing high load transmission.
to provide a full set of technical parameters selection guidance and sample testing services. All batch products are accompanied by quality inspection reports. The after-sales team answers technical problems such as installation matching and tension adjustment online 24 hours a day. Quality problems caused by material defects are reissued free of charge.
Under the conditions of regular cleaning and regular lubrication every 500 kilometers, the expected service life of the 428H motorcycle chain can reach more than 15000 kilometers. It is strictly forbidden to drive at high speed without lubrication. Please ensure that the front and rear sprockets are coplanar when installing.
certificate
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The 428H motorcycle chain is designed with thickened chain plates, which has excellent tensile strength and wear-resistant fatigue performance. It is the core component to ensure efficient transmission and high-load driving of vehicles. As a source manufacturer, Motomaxsfr has its own production base and the manufacturing capacity of the whole industry chain, eliminating all middlemen, and providing competitive ex-factory prices, strict quality control and faster batch delivery services for global buyers.
Alloy Steel
Material:
2.0mm
Chain thickness:
20.6 kN
Tensile strength:
428H motorcycle chain increases the thickness of the chain plate to 2.0mm, which is 30% thicker than ordinary 428 chain, effectively bears the impact force caused by frequent start and stop of high torque, and greatly reduces the risk of chain fracture.
the seamless sleeve manufactured by high-precision cold-drawn process and matched with high roundness pin shaft reduce the wear rate of chain and sprocket when meshing by 4% G, and it is not easy to stretch for long-term operation.
pin shaft and roller surface after deep carburizing heat treatment, the surface hardness of more than 55 Rockwell hardness, significantly improve wear resistance and fatigue resistance, effectively extend the overall service life of the chain.
The chain pitch tolerance is strictly controlled within 0.05mm to ensure that the 428H motorcycle chain is accurately meshed with the standard sprocket, reducing transmission noise and reducing power loss.
Each 428H motorcycle chain is pre-stretched with a rated load of 30% before leaving the factory to eliminate initial plastic deformation and ensure stable performance of finished products received by wholesalers.
The chain is subjected to deep hot oil immersion penetration treatment after assembly, so that the anti-rust lubricating grease evenly covers the inside of each joint, providing anti-corrosion protection for several months and reducing the frequency of early maintenance.
| Specification Parameters | 428H motorcycle chain detailed technical specifications |
| Standard chain model | 428H (Thickened Roller Chain) |
| Chain pitch | 12.70 mm |
| Roller Diameter | 8.51 mm |
| Width between Inner Plates | 7.85 mm |
| Pin Diameter | 4.51 mm |
| Plate Thickness | 2.00 mm |
| Average tensile strength | 20.6 kN |
| Main vehicle models (Application) | Traditional motorcycles and recreational electric scooters with an engine displacement of 125cc or less |
| Master Link (Connection Ring Type) | Spring clip type spring joint |
suitable for motorcycle aftermarket parts wholesalers around the world. This product offers standard specifications and consistent factory‑grade quality, perfectly aligning with wholesalers’ core procurement needs for bulk purchasing, high cost‑effectiveness, and long‑term supply chain stability.
suitable for the production of 2 kW to 5 kW, speed of about 60 kilometers per hour of electric scooter and light electric motorcycle manufacturers. The 428H motorcycle chain can efficiently handle the motor’s instantaneous torque output, meeting the compatibility standards of the drivetrain.
suitable for distributors with large offline repair networks and retail outlets. As a high‑frequency, universal consumable in the aftermarket, the thickened 428H boasts exceptional vehicle compatibility, helping repair shops reduce customer complaint rates.
suitable for OEM assembly factory looking for high standard transmission chain. We deliver precise dimensional tolerances and material certifications, meeting the stringent industrial standards of OEMs for assembly accuracy, vehicle‑wide transmission efficiency, and durability.
The core raw materials of 428H motorcycle chain are all high-toughness alloy structural steel produced by large domestic steel mills. Among them, the chain plate part is made of high-strength cold-rolled steel strip, which has excellent impact resistance and ductility. The pin shaft and sleeve part are made of high-quality alloy steel containing chromium, molybdenum and other elements. After precision cold drawing and seamless extrusion molding, the internal organization of the whole transmission chain is guaranteed to be uniform, and it still has excellent structural stability when bearing high load transmission.
to provide a full set of technical parameters selection guidance and sample testing services. All batch products are accompanied by quality inspection reports. The after-sales team answers technical problems such as installation matching and tension adjustment online 24 hours a day. Quality problems caused by material defects are reissued free of charge.
Under the conditions of regular cleaning and regular lubrication every 500 kilometers, the expected service life of the 428H motorcycle chain can reach more than 15000 kilometers. It is strictly forbidden to drive at high speed without lubrication. Please ensure that the front and rear sprockets are coplanar when installing.