OEM Heavy-Duty Motorcycle Chain and Sprocket Kit M420 M428 M428h for Motorbikes

• Customization: Available
• Standard or Nonstandard: Standard
• Application: Motorcycle
• Model NO.: 420/428/428H
• Surface Treatment: Polishing
• Structure: Roller Chain
• Material: Alloy
• Type: Short Pitch Chain
• Warranty: 1 Year
• After Sales Service: 7*24 Hours
• Certification: ISO9001,SGS
• Packaging: According to Needs
• Usage: Motorcycle/Motorbike
• Color: According to Needs
• Delivery: 15-25 Days
• Transport Package: Carton Case, Wooden Box and Pallet
• Specification: Alloy
• Trademark: SMCC or Customize
• Origin: China
• HS Code: 7315119000
• Production Capacity: 50000000 Per Year
• Package Size: 70.00cm * 70.00cm * 90.00cm
• Package Gross Weight: 50.000kg

Product Description

About the Products

I.Introduction of Product:

M420, M428 and M428H motorcycle chain and sprocket kits are designed for reliable power transmission and long-lasting performance in various motorcycles and motorbikes. The complete kit combines a high-strength motorcycle drive chain with precision-machined front and rear sprockets, providing smooth engagement, stable transmission and excellent wear resistance.

Made from high-quality carbon steel or alloy steel, the chain and sprockets can be heat treated to improve hardness, tensile strength and service life. Different tooth numbers, chain lengths, sprocket dimensions, surface treatments and packaging options are available to meet different motorcycle applications and OEM requirements.

Our M420, M428 and M428H chain and sprocket kits are suitable for motorcycle repair, replacement, maintenance and aftermarket applications. OEM and customized specifications are supported for distributors, wholesalers, motorcycle parts suppliers and repair shops.

II.Parameter of Products:
 

Specification	420	428	428H
Chain No.	420	428	428H
Pitch	12.70 mm	12.70 mm	12.70 mm
Pitch	1/2"	1/2"	1/2"
Roller Diameter	7.77 mm	8.51 mm	8.51 mm
Inner Width	6.25 mm	7.75 mm	7.75-7.94 mm
Pin Diameter	3.96 mm	4.45 mm	4.45 mm
Plate Thickness	1.50 mm	1.60 mm	2.03 mm
Inner Plate Depth	12.00 mm	11.80 mm	11.80 mm
Pin Length	14.70 mm	16.70-16.85 mm	18.70 mm
Tensile Strength	~16-17 kN	~17.8 kN	~20.6-23 kN
Weight	~0.55-0.56 kg/m	~0.68-0.69 kg/m	~0.79-0.80 kg/m

III.Advantages:
Complete Chain & Sprocket Kit - Includes motorcycle drive chain and matching sprockets for convenient replacement.
M420 / M428 / M428H Options - Available for different motorcycle applications and transmission requirements.
High-Strength Steel - Quality carbon steel and alloy steel options provide reliable strength and durability.
Precision-Machined Sprockets - Accurate tooth profiles ensure smooth chain engagement and stable power transmission.
Heat-Treated Components - High-frequency quenching and other heat-treatment processes improve hardness and wear resistance.
Excellent Wear Resistance - Designed for long service life under frequent motorcycle operation.
Smooth Power Transmission - Precise chain-sprocket matching helps reduce vibration and transmission noise.
OEM & Customization - Tooth number, chain length, dimensions, material, surface treatment and packaging can be customized.
Suitable for Aftermarket Use - Ideal for motorcycle parts distributors, wholesalers, repair shops and replacement markets.
Factory Direct Supply - Competitive pricing and stable production capacity for bulk orders.


IV.Packages and Shipping:
We provide Carton Box, Wooden Box or Pallet for packaging.

And also can be customized!!!

 We support multiple transportation methods. Whether you are located in North America, South America, Europe, Southeast Asia or Africa, we will arrange shipments to your location efficiently and provide you with the most economical transport service.

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Company Profile

 

I.Why Chose us?
(1).Sophisticated production system:
    We are a manufacturer specializing in chains, sprockets, gears and matching products with a well-established production system. Our integrated production workflow includes material processing, precision machining, thermal treatment, surface treatment, assembly and full-range quality testing. Rigorous process management enables us to guarantee stable product quality, support bulk orders and flexible customized solutions for global clients.
 (2).Many partnerships with clients from different countries we have established:
    For years, as a producer of chains and related accessories, we have formed long-term friendly partnerships with clients throughout Asia, Europe, the Americas, Africa and Oceania. We fully acknowledge diverse local requirements and international standards. Based on equality and mutual benefit, we supply customized solutions suited to local operating environments. Our sincere service and dependable products win consistent recognition, helping us develop a mature global cooperation network.



(3).Certification we own:
    We have obtained a variety of professional industry certificates and official domestic certifications related to chain manufacturing. All credentials are available for verification. These certifications sufficiently demonstrate that our production management and product quality comply with relevant industrial standards. They serve as powerful proof of our overall strength, stable supply capacity and consistent product quality, bringing greater procurement confidence to our global partners.



II.Company Introduction:

    Qingdao Star Machine Technology Co.,Ltd. is located in the beautful coastal city-Qingdao.We are a large enterprise groups engaged in researching, production, marketing and technical services, having three large research and production basesand one large marketing center for transmission parts, bearings, chains, sprockets, tractor driving axles and hydraulic steering units. Covering 80,000 square meters, now we have 816 employees including 167 senior professional technicians and a global network of sales and service system. Keeping good partnership with Liaocheng University, Qingdao University, Shandong Agricultural University, Shandong University and Chinese Academy of Agricultural Sciences, we are getting great technical support from industry experts.
    "You provide a request, We'll give you a perfect product". We uphold the business philosophy" integrity, efficiency, cooperation, innovation", quality first, advanced technology, precision production, integrity management, efficient service, to supportour customers with the top quality products and super sophisticated technology.