Motorcycle Parts And Components
Ningbo Zhouchi Vehicle Industry Co., Ltd.supply to global market for Automotive and industry application.Our company specializes in Aluminum Die-casting and Zinc Die-casting ,CNC machining and assembling.

01
Advanced Equipment
There are 11 sets die casting machines from 88 to 1600 Ton, 30 sets CNC and machining center, two metal spraying production lines ,etc..
02
Custom Service
We are customized according to customer demand,, to meet customer needs at any time.
03
High Quality
We have passed IATF16949:2016 from 2016,strictly follow the IATF16949 requirements , with rich experience in mold design and production for more than 30 years .
04
Professional Team
With strong technical force, we have mastered strong ability in developing new products and machinery processing. All our products are well accepted by our customers.
Products Description
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Transmission HousingThe transmission housing This product is the core load-bearing component of the automotive transmission system - the transmission housing. It is a key structural component that connects the engine...read more
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Aluminum Alloy Die-cast BracketThis product is a specialized functional bracket made by aluminum alloy die-casting. It is a core component of the Shur-Co STT series tarpaulin system and mainly undertakes the functions of fixing...read more
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Clip FixingClip fixing is a fundamental component for achieving structural positioning and component fastening. The in-depth application of the aluminum die-casting process has enabled the square fixing...read more
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KSB Footrest ComponentAluminum Die Casting Empowers the Upgrade of KSB Footrest Component: Lightweight and High Precision Set New Industry Benchmarks.read more
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Brake DrumAs the core load-bearing component of the drum brake system, it has long dominated the commercial vehicle and construction machinery sectors due to its advantages such as a simple structure,...read more
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Left And Right Brackets Of The Headlamp HousingAs the core load-bearing component of the vehicle lighting system, the left & right headlight housing brackets serve as the key link connecting the headlight assembly and the vehicle body. They...read more
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Handlebar Reinforcement BarThe handlebar reinforcement rod is the core reinforcing component of the bicycle and electric bicycle handlebar system. It is formed as a whole through precise casting technology, which can...read more
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Oil Filter Screen Cover Bottom ShellThe bottom shell of the oil filter cover is a crucial component in the engine lubrication system. Its main function is to install and protect the oil filter, and to ensure the normal filtration...read more
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Turbocharger HousingThis turbocharger housing is the core key component of the turbocharging system, mainly functioning to accommodate the turbine rotor and guide the exhaust gas to efficiently drive the rotor to...read more
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Large Wheel HubAmong the numerous auto parts, wheels may seem unremarkable, but they play a vital role. Today, we introduce this wheel to you. With its excellent quality and outstanding performance, it has...read more
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Valve Rocker Arm CapValve Rocker Arm Cap is a key precision component in the engine valve train, mainly sleeved at the end of the valve rocker shaft or key support positions.read more
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Aluminum Foot SupportsThe Aluminum foot support is a vehicle parking device made of aluminum alloy. It achieves lightweight and high corrosion resistance through die-casting/CNC processes. Its core function is to...read more
What Is Motorcycle Parts And Components
Modules are assemblies composed of numerous components that can independently perform specific functions, such as engines and gearboxes.
Components are the foundation of modules, and modules are the functional collection of components. During maintenance, we usually replace damaged components, while for upgrades or major repairs, we may handle the entire module.
Advantages of aluminum automotive components:
Aluminum materials achieve the core requirements of energy conservation, environmental protection and performance improvement through "weight reduction", making it the preferred material for modern automobiles to achieve lightweighting.

1
Lightweighting
Significantly reduces vehicle weight, enhances fuel efficiency and range.
2
High strength
Excellent strength-to-weight ratio, balancing safety and performance.
3
Corrosion-resistant
Naturally resistant to rust, extending the lifespan of components.
4
Good heat dissipation
It is an ideal material for manufacturing heat dissipation components.
Improved Safety
Frames provide structural rigidity, distributing weight evenly to prevent tipping. Shock absorbers (front forks, rear shocks) dampen vibrations from uneven roads, ensuring stable handling and reducing rider fatigue. Tires, with specialized treads, enhance traction on wet or dry surfaces, minimizing skidding risks.
Improved Stability
Brake systems (disc brakes, brake pads) offer responsive stopping power, while handlebars and steering components ensure precise direction control, critical for avoiding obstacles.


Durability and Longevity
Many parts are made from robust materials (e.g., high-grade steel for frames, heat-resistant alloys for engine components, reinforced rubber for tires) to withstand wear, corrosion, and extreme temperatures. Lubrication systems (oil pumps, filters) reduce friction between moving parts, extending their lifespan and reducing maintenance needs.
Compact and Space-Saving Design
Components are designed to be lightweight and compact, contributing to the motorcycle's overall small footprint. This makes motorcycles easier to maneuver in traffic, park in tight spaces, and transport (e.g., on trailers), enhancing their practicality for urban commuting.
Cost-Effectiveness
Compared to larger vehicles (cars, trucks), motorcycle parts are generally smaller, lighter, and less complex, leading to lower manufacturing and replacement costs. Routine maintenance (e.g., changing oil filters, brake pads) is also more affordable, making motorcycles an economical transportation option.


Customization and Adaptability
Motorcycle parts are often modular, allowing riders to customize their vehicles for specific needs. For example, off-road bikes can be fitted with heavier-duty suspension and knobby tires, while touring bikes may add larger fuel tanks or comfort-focused seats. This adaptability makes motorcycles versatile for various uses (commuting, racing, adventure).
Types Of Motorcycle Parts And Component
Power System Components:This is the core driving part of the motorcycle, responsible for providing power.
- Engine-related components: Including cylinders, pistons, crankshafts, connecting rods, valves, camshafts, etc., which are key components for converting fuel energy into mechanical energy.
- Fuel supply components: Such as fuel tanks, fuel pumps, carburetors (or electronic fuel injection systems), fuel filters, etc., used to store and deliver fuel to the engine.
- Exhaust system: Composed of exhaust pipes, mufflers, etc., responsible for discharging burned exhaust gas and reducing noise.
- Cooling and lubrication components: The cooling system includes radiators, water pumps, fans (for water cooling) or heat sinks (for air cooling); the lubrication system consists of oil pumps, oil filters, oil pans, etc., which respectively play the roles of cooling and reducing component wear.
- Ignition system: Including spark plugs, ignition coils, magnetos, batteries, etc., used to ignite the fuel-air mixture in the engine to start and maintain engine operation.
Transmission System Components:Responsible for transmitting the power of the engine to the wheels .
- Clutch: Controls the connection and disconnection of power between the engine and the gearbox, facilitating gear shifting.
- Gearbox: Changes the transmission ratio through different gear combinations to achieve acceleration, deceleration, or reversing (in some models).
- Transmission devices: Including chains, sprockets (chain drive), belts, pulleys (belt drive), or drive shafts (shaft drive), which transmit the power of the gearbox to the rear wheels.
Running System Components:Support the overall structure of the vehicle and ensure driving stability.
- Frame: As the skeleton of the motorcycle, it connects all components such as the engine, suspension system, and body, bearing the weight and impact force during driving.
- Suspension system: The front suspension is mostly a front fork (including shock absorbers), and the rear suspension includes shock absorbers and swingarms, which are used to buffer road bumps and improve riding comfort and handling.
- Wheels and tires: The wheels are composed of hubs and rims, while the tires are in direct contact with the ground, providing grip and affecting driving stability and safety (divided into road tires, off-road tires, cruise tires, etc.).
Control System Components:Used to control the driving state of the motorcycle.
- Steering components: Mainly the handlebars, which control the vehicle's steering by connecting to the front fork. The handlebars are also equipped with operating devices such as throttle grips, brake levers, and clutch levers.
- Brake system: Including brake discs, brake pads (disc brakes) or brake drums, brake shoes (drum brakes), as well as brake pumps, brake cables, etc. It realizes vehicle deceleration or parking by operating the brake levers/pedals.
- Shifting components: Such as shift pedals, which coordinate with the clutch to control gear shifting in the gearbox.
Electrical System Components:Responsible for the vehicle's power supply and electronic functions.
- Power supply components: Batteries, generators (or magnetos), which provide electricity for all electrical equipment of the vehicle.
- Lighting and signal components: Headlights, taillights, turn signals, brake lights, etc., used for lighting and transmitting driving intentions to other road users.
- Instrument and warning components: Instrument panels (displaying information such as speed, speed, fuel level, mileage, etc.), horns, anti-theft devices, etc.
How do Motorcycle Parts and Components work?

Power system
The engine generates power by burning fuel, which is converted into rotational motion through the crankshaft and connecting rod; the fuel supply system continuously provides fuel, the ignition system ignites the mixture at regular intervals.

Transmission system
The power of the engine is transmitted to the gearbox through the clutch. After adjusting the transmission ratio by shifting gears, the power is then transmitted to the rear wheels through a chain, belt, or drive shaft to drive the vehicle forward.

Running and control systems
The frame supports the weight of the entire vehicle, and the suspension system cushions road impacts; the driver controls the steering through the handlebars, operates the brake system (using frictional resistance) to decelerate or stop.

Electrical system
The battery and generator provide electricity to ensure the normal operation of systems such as lights, instruments, and ignition, ensuring driving safety and information feedback.
How To Select The Appropriate Motorcycle Parts And Components
I. Clarify Compatibility: The Core Premise
- Match the vehicle model and specifications:Parts must strictly match the motorcycle's brand, model, and displacement (for example, engine parts for Honda CB series and Yamaha R series are usually not interchangeable).
- Pay attention to specific parameters: such as tire size (e.g., 110/70-17), brake disc diameter, spark plug heat value, and chain link count. Mismatched parameters may cause installation difficulties or safety hazards.
- Refer to the vehicle manual: The manual clearly specifies the original factory-recommended part specifications, which is an important basis for purchasing.
- Original parts: Produced by the vehicle manufacturer or its authorized suppliers, they offer the highest compatibility and quality assurance but are more expensive. They are suitable for core components (e.g., key engine parts, brake systems).
- Aftermarket/brand parts: Produced by third-party manufacturers, they are cost-effective. Some well-known brands (such as NGK spark plugs, Brembo brake parts) can match the quality of original parts, making them suitable for non-core components or modification needs.
- Avoid "three-no products" (no brand, no specification, no certification): Especially for safety-related parts (e.g., tires, brakes, suspension), inferior products may lead to serious accidents.
II. Choose Based on Usage Scenarios and Needs
- Prioritize durable and economical parts: such as wear-resistant road tires, long-lasting engine oil, and standard brake pads (focusing on low noise and long service life).There is no need to over-pursue modified parts as performance requirements are not high.
- Enhance reliability and comfort: such as puncture-resistant tires, large-capacity fuel tanks (or auxiliary fuel tank accessories), reinforced suspension (to adapt to complex road conditions), and waterproof electrical components (e.g., LED headlights, anti-fall turn signals).
- Focus on high-performance parts: such as hot-melt tires (to improve grip), racing-grade brake pads (high-temperature resistance, sensitive braking), lightweight wheel hubs (to reduce inertia), and adjustable suspension (to adapt to high-speed cornering).
- Choose off-road-specific parts: such as large-tooth deep-groove tires (for grip and anti-slip), high-strength frame guards, long-travel suspension (to cushion bumps), and anti-fall engine covers.
III. Key Points for Purchasing Core Components
- Engine oil: Select the viscosity grade (e.g., 10W-40, 5W-30) based on the engine type (air-cooled/water-cooled), displacement, and ambient temperature of use. Prioritize well-known brands (e.g., Shell, Motul).
- Spark plugs: Choose the heat value according to the engine compression ratio to ensure ignition efficiency (e.g., NGK, Denso).
- Brake pads/brake discs: Choose according to driving habits (street use focuses on linear braking, track use focuses on high-temperature stability), and avoid mismatching with the original brake pump.
- Chains/belts: Select products with strength matching the vehicle's displacement, and perform regular maintenance to extend their service life (e.g., DID chains).
- Tires:Choose types based on road conditions: road tires (good grip, low noise), off-road tires (deep grooves, suitable for mud), and dual-purpose tires (balancing road and light off-road use).Pay attention to the production date (tires usually have a lifespan of 5 years) and avoid aged products.
IV. Other Considerations
- Budget balance: Invest more in core safety components (brakes, suspension, tires), while cost-effective products can be chosen for decorative parts (e.g., stickers, lamp covers).
- Installation and after-sales service: Some complex components (e.g., engine parts, electronic control systems) require professional installation. Choose merchants that provide after-sales support and keep purchase receipts.
- Regulatory compliance: Modified parts must comply with local traffic regulations (e.g., headlight brightness, exhaust noise) to avoid penalties for violations.
Our Factory
Ningbo Zhouchi Vehicle Industry Co., Ltd. was founded in 1992, located in Binhai Industrial Park of the beautiful coastal port city -Ningbo. Now our company covers the total area of 16000 square meters, with 150 staffs, including 20 quality inspectors and engineers. Our turnover is around12 Millions USD. Our company specializes in Aluminum Die-casting and Zinc Die-casting, CNC machining and assembling

Why Choose Us
Experienced Team
Our team of engineers and technicians has years of experience in the industry, and we leverage that expertise to provide our clients with the best possible solutions.
Exceptional Customer Service
We pride ourselves on providing exceptional customer service and technical support to our clients, ensuring that they have a smooth and hassle-free experience.
Quality Products
We use only the highest-grade materials and advanced manufacturing techniques to produce products that are reliable, durable, and perform to the highest standards.
Competitive Price
We have professional sourcing team and cost accounting team, stive to reduce cost and profit and provide you a good price.
Sustainable Development
Establish a good reputation and brand value in the industry, and promote the sustainable, stable, rapid and healthy development of the enterprise.
One Stop Solution
From the begining inquiry and throughout the entire process until you receive the goods. we are dedicated to supporting you every step of the way.
our certifications
ISO 14001:2015
The ISO 14001:2015 certificate is an internationally recognized document that indicates that an organization has established, implemented, maintained, and continuously improved an environmental management system (EMS) that complies with the requirements of ISO 14001:2015.
This certificate certifies that the environmental management system of this organization has met international standards, enabling it to systematically manage its environmental responsibilities and commit to sustainable development.

IATF16949:2016
IATF 16949:2016 is an international standard for quality management systems in the automotive industry. It was developed by the International Automotive Task Force (IATF) and was released in October 2016, replacing the previous version of ISO/TS 16949:2009.
The core objective of IATF 16949 is to continuously improve, prevent defects, reduce variations and waste in the automotive supply chain. It aims to ensure that the design and manufacturing of automotive products (including components and materials) can always meet customer requirements and even exceed customer expectations.

FAQ
Q: What types of motorcycle parts do you specialize in die casting for?
A: We specialize in high-pressure die casting (HPDC) of aluminum and zinc alloy components for various motorcycle systems, including but not limited to: engine casings (crankcases, covers), transmission housings, clutch covers, brake system components (caliper brackets, master cylinder bodies), wheel hubs, structural brackets, intake manifolds, and decorative trim pieces.
Q: What materials do you typically use for motorcycle parts?
A: We primarily use high-quality aluminum alloys (such as ADC12, A380, A383, or specific alloys requested by clients) for their excellent strength-to-weight ratio, corrosion resistance, and thermal conductivity. Zinc alloys (like Zamak) are also used for specific applications requiring high precision and surface finish.
Q: What are the advantages of die-cast motorcycle parts?
A: Die casting offers significant advantages: High production rates and repeatability. Excellent dimensional accuracy and complex geometries. Superior surface finish, often reducing the need for secondary machining. High strength and rigidity. Significant weight reduction compared to other processes (crucial for motorcycles). Good thermal and electrical conductivity (especially aluminum). Thin walls achievable.
Q: What is your typical production capacity and lead time
A: Our capacity ranges from low-volume prototypes to high-volume mass production]. Standard lead times are approximately 4-8 weeks for tooling, 2-4 weeks for production] depending on part complexity, order volume, and current workload. We offer expedited options upon request.
Q: Do you have experience with specific motorcycle brands or models?
A: Yes, we have extensive experience supplying die-cast components for a wide range of motorcycle manufacturers, including SUZUKI、PEUGEOT、MADZA 、QINGQI and so on. We understand the demanding requirements of the motorcycle industry.
Q: What die casting machines and technologies do you employ?
A: We utilize modern cold chamber high-pressure die casting machines ranging from [Mention tonnage range 88T to 1250T. Our processes incorporate advanced technologies like vacuum-assisted casting (to reduce porosity), real-time process monitoring, and automated systems for consistency and quality.
Q: How do you ensure the quality and consistency of your die-cast parts?
A: Quality is paramount. We implement a rigorous Quality Management System (QMS), typically ISO 9001 certified. This includes: Strict control of raw material sourcing and inspection. Advanced process control and monitoring during casting. Comprehensive post-casting inspection: Dimensional checks (CMM), visual inspection, pressure testing (leak testing), X-ray inspection (for porosity/inclusions), mechanical property testing (hardness, tensile strength). PPAP (Production Part Approval Process) documentation for new parts. Traceability throughout the production process.a
Q: What surface finishing options do you offer?
A: We offer various surface finishes to meet aesthetic and functional requirements: As-cast finish. Shot blasting/sand blasting. Machining (milling, turning, drilling, tapping). Vibratory finishing/tumbling. Painting (powder coating, wet paint). Plating (e.g., chrome, nickel). Anodizing (for aluminum). Laser etching/marking.
Q: Do you perform secondary machining operations?
A: Yes, we offer comprehensive value-added services, including CNC machining, drilling, tapping, and milling to achieve final dimensions, tolerances, and mounting features directly on the castings, providing a ready-to-install part.
Q: Can die-cast parts withstand the high temperatures and stresses of motorcycle engines?
A: Absolutely. The aluminum alloys we use (like A380/A383) are specifically chosen for their excellent high-temperature strength, thermal conductivity, and fatigue resistance. Combined with precise process control and design optimization, our die-cast engine components reliably meet the demanding performance requirements.
Q: How do you ensure the durability and impact resistance of structural parts (like brackets or hubs)?
A: Durability is engineered in. We utilize high-strength alloys, optimize part geometry and wall thickness through simulation (like MAGMAsoft/Flow-3D), incorporate robust ribbing and gussets in the design, and strictly control the casting process to minimize defects that could compromise strength. Impact testing is often part of our validation process.
Q: Can die-cast parts be made as lightweight as possible?
A: Yes, weight reduction is a major advantage of die casting. We specialize in designing parts with optimized topology (using CAD/FEA) to minimize material usage while maintaining strength. The inherent properties of aluminum alloys also contribute significantly to lightweight components compared to steel or iron castings.
Q: Are your parts compatible with standard motorcycle fluids (oil, brake fluid, coolant)?
A: Yes, the aluminum alloys we use exhibit excellent corrosion resistance against standard automotive and motorcycle fluids. For critical sealing surfaces, we ensure precise machining and recommend appropriate gaskets/seals.
Q: Do you offer prototyping services for new motorcycle part designs?
A: Yes, we offer rapid prototyping services using methods like 3D printing (for form/fit checks) and low-volume prototype tooling to produce functional die-cast samples for testing and validation before committing to full production tooling.*
Q: What file formats do you require for quoting and tooling?
A: We prefer 3D CAD models in common formats like STEP (.stp), IGES (.igs), or Parasolid (.x_t). 2D drawings (PDF or DWG/DXF) with critical dimensions, tolerances, material specs, and surface finish requirements are also essential.
Q: Can you help with design for manufacturability (DFM) for die casting
A: Absolutely! Our engineering team has extensive experience in optimizing motorcycle part designs for the die casting process. We provide expert DFM feedback early in the design stage to enhance manufacturability, reduce costs, improve quality, and shorten lead times.
Q: What are your minimum order quantities (MOQs)?
A: MOQs depend on part complexity and tooling costs. We work flexibly with clients, offering solutions from prototype batches to high-volume production. Please contact us with your specific requirements for a tailored quote.
Q: Do you offer global shipping?
A: Yes, we have experience in packaging and shipping die-cast motorcycle components worldwide. We work with reliable logistics partners to ensure safe and timely delivery.
Q: Who should I contact for technical support or a new project inquiry?
A: Please contact our Sales or Engineering team at zhangying@zhouchi.net or call us at +86 152 5741 0412. You can also use the contact form on our website https://www.zhouchicasting.com/contact-us. We look forward to discussing your motorcycle component needs!
Companies We Have as Clients
We are looking for a cooperative partner to expand our business.












As one of the leading motorcycle parts and components manufacturers and suppliers in China, we warmly welcome you to buy cheap motorcycle parts and components from our factory. All customized products are with high quality and competitive price.
