Custom Die-cast Zinc Alloy Handlebar Stem - High-Quality OEM Spare Accessory from China Suppliers and Factory
Key Features & Benefits
Made from high-grade ZAMAK 5 (ZA-8) alloy, ensuring excellent tensile strength, durability, and long-term performance under stress.
Manufactured using advanced die-cast molding technology for complex, consistent geometries with tight tolerances and a smooth, clean surface finish, ready for further processing.
Tailor the stem to your exact needs. Customize the clamp diameter, length, angle, and hole patterns. We can adapt the design to your specific mechanical and aesthetic requirements.
Available in a variety of finishes including Polished, Chrome Plating, Powder Coating, PVD (Physical Vapor Deposition) coatings like Gold, Black, Gunmetal, and more. All finishes are designed to pass rigorous salt spray tests (e.g., 96+ hours).
The zinc alloy base combined with high-quality plating/coating provides outstanding resistance to rust, tarnish, and wear, making it suitable for indoor and outdoor use.
Designed for straightforward assembly, often featuring precisely machined clamping surfaces and clean bolt hole threads for a secure and reliable fit.
Technical Specifications
| Parameter | Details |
|---|---|
| Main Material | ZAMAK 5 / ZA-8 Zinc Alloy (Grade AZ-81A) |
| Production Process | High-Pressure Die Casting |
| Standard Finish | Polished, Chrome Plating, PVD Coating, Powder Coating, Paint |
| Color Options | Silver, Black, Gold, Gunmetal, Custom RAL Colors |
| Quality Standard | ISO 9001:2015 |
| Sample Lead Time | 7-35 Days (Custom designs) |
| Mass Production | 25-45 Days after sample confirmation |
Why Choose Us?
Full-Service OEM Partner: From mold design and prototyping to final assembly and packaging.
Stringent QC: Every piece undergoes rigorous inspection to ensure dimensional accuracy and finish quality.
Competitive Pricing: Cost-effective solutions without compromising on quality, ideal for bulk orders.
Reliable Logistics: We manage smooth shipping and delivery to your designated port or address.
Applications
Bicycles, E-bikes, and Mountain Bikes
Electric Scooters and Motorcycles
Fitness Equipment and Exercise Machines
Agricultural Machinery and Carts
Industrial Equipment and Control Levers
Contact Us Today for a Custom Quote!
Ready to customize your handlebar stems? Send us your technical drawings, 3D files, or samples. Our engineering team will review your needs and provide a competitive solution.
With the whole process of moulding, die-casting, machining, polishing, plating/powder coating/painting, inspection, assembly and shipment, we can strictly control every step of handle production to ensure quality and improve product qualification rate.
Actually we provide OEM/ODM services for many famous international brands in Europe and America. For example, TOTO, Dornbracht, Roca, KLUDI.
We strictly control the thickness of plating layer of copper, nickel and chrome, usually our plating thickness is: Cu ≥ 15um, Ni ≥ 10um, Cr ≥ 0.15um, and can pass neutral 240 hours or acidic 48 hours salt spray test. We also customize your handles for salt spray testing in excess of neutral 480 hours. And we promise never to use the return material directly for die-casting production.
Sincerely welcome you to call us and visit our factory!
Product Display
Frequently Asked Questions (FAQ)
We use high-grade ZAMAK 5 (ZA-8) zinc alloy (Grade AZ-81A), providing excellent tensile strength, dimensional stability, and long-term durability under demanding mechanical stress.
Yes. We offer extensive OEM/ODM customization. You can customize clamp diameters, angles, lengths, and mounting hole configurations based on your technical drawings, 3D CAD files, or physical samples.
We provide Polishing, Chrome Plating, Powder Coating, Painting, and PVD coating in various colors. Our standard electroplating (Cu ≥ 15um, Ni ≥ 10um, Cr ≥ 0.15um) passes 240-hour neutral or 48-hour acidic salt spray tests, with customizable capabilities exceeding 480+ hours.
Custom sample lead times range between 7 to 35 days depending on tooling complexity. Mass production typically requires 25 to 45 days following sample approval.
We operate under ISO 9001:2015 quality standards with strict inspection at each phase (moulding, casting, machining, plating, assembly). We also strictly promise never to use recycled return materials directly in die-casting production.
Our precision die-cast parts are widely applied across bicycles, e-bikes, mountain bikes, electric scooters, motorcycles, fitness machinery, agricultural equipment, and industrial control systems.