Company Overview
Cangzhou Great Wall Motorcycle Parts Co., Ltd. is located in Cangzhou, Hebei Province, and specializes in the R&D, manufacturing, and sales of motorcycle transmission system components. The company has assembled a highly experienced technical team and established a comprehensive production chain that spans material procurement, machining and manufacturing, heat treatment, surface protection, and final inspection, enabling it to meet both mass-production and small-batch customization requirements.

Main Products and Applications

• Sprocket Series: Designed for motorcycles of various displacements and applications, including moped, scooter, and off-road models, with support for multiple tooth counts and bolt-hole configurations to balance load-carrying capacity and transmission efficiency.
• Gears and gear rings: used in变速 and transmission systems, with emphasis on meshing accuracy and wear resistance.
• Drive Components and Accessories: We supply complementary parts such as couplings, alignment guards, and bearing housings to facilitate vehicle assembly and modification applications.
  The products are widely used in urban and rural road networks, agricultural machinery, logistics and transportation, and the vehicle modification market.

Materials and Processes
The company commonly uses alloy structural steel and high-strength carbon steel, and can also select corrosion-resistant or wear-resistant alloys based on customer requirements. The primary heat treatment processes include carburizing, quenching, tempering, and quenching-and-tempering, ensuring a balance between tooth-surface hardness and core toughness. Surface treatments offer a variety of options, such as electroplating, blackening, powder coating, and rust-preventive oiling, to meet diverse service environments and corrosion-protection requirements.

Quality Control and Inspection
We have established a comprehensive quality assurance system encompassing incoming material inspection, in-process control, and final product testing, equipped with advanced inspection methods such as dimensional measurement, hardness testing, microstructural examination, and dynamic balancing. Each production batch is accompanied by detailed material and heat-treatment records, supporting customer factory audits and third-party inspections to ensure the stability and traceability of every batch.

Customization and Technical Support
The company accepts custom drawing design and sample machining, and can adjust gear profiles, number of teeth, hole locations, and surface treatment options based on customer-provided specifications. We also provide assembly recommendations, service-life assessments, and maintenance guidelines, and are capable of developing dedicated molds and mass-production solutions for long-term partners to reduce unit costs and ensure reliable delivery schedules.

Packaging and Logistics
Select appropriate rust-prevention packaging and reinforcement solutions based on the mode of transport and destination, supporting wooden crates, pallets, and internal cushioning to facilitate sea, air, and land transportation. Provide relevant material and treatment certificates for export shipments to assist customers in passing customs inspection and clearance.

After-sales Service and Cooperation Methods
The company provides quality response and technical support during the warranty period, and non-human-induced damage can be replaced or repaired in accordance with the agreement. We welcome dealers, OEMs, and modification shops to discuss cooperation, and we support sample trials, long-term supply, and joint R&D initiatives.

Contact Us
To request product samples, quotations, or technical specifications, please provide vehicle model information, gear count, hole pattern, and drawings or physical samples. Our company will promptly furnish technical feedback and a collaboration proposal, and we look forward to establishing long-term, trust-based partnerships with customers both domestically and internationally.