High-precision replacement components and assemblies engineered for maximum performance
Founded in 2005, VETOR GROUP has spent nearly two decades solidifying its position as a comprehensive global leader in the design, engineering, and export of high-performance off-road vehicles and premium precision components. Strategically located in the Cixi City industrial hub, Hangzhou Bay, China, we operate at the core of one of the world's most sophisticated mechanical manufacturing corridors.
Our geographic positioning provides unparalleled logistics infrastructure, situated just a 90-minute drive from both the Shanghai Port and the Ningbo Port—the busiest deep-water ports globally—as well as Ningbo Lishe and Hangzhou Xiaoshan International Airports. This integration allows VETOR GROUP to optimize shipping schedules, secure competitive freight rates, and guarantee reliable shipping cycles for international procurement teams.
At the center of every rugged ATV, dirt bike, and high-performance vehicle lies the necessity for frictionless, reliable rotation. VETOR GROUP's dedicated in-house manufacturing facility specializes in producing premium deep groove ball bearings and EMQ (Electric Motor Quality) grade bearings. With precision inner ring dimensions ranging from 6mm to 90mm, these components represent the engineering standard that safeguards mechanical integrity.
Our VETOR brand bearings are rigorously engineered to provide distinct technical advantages:
Advanced raceway super-finishing limits micro-friction, preventing harmonic resonances.
High-grade rubber (RS/2RS) and metallic shields (ZZ) prevent dirt, dust, and water ingress.
Constructed from high-chromium carbon steel, ensuring robust thermal stability.
Widely integrated across multiple mechanical sectors, our bearings serve micro-motors, home appliances, automotive transmissions, agricultural equipment, medical instruments, and off-road motorcycle wheel assemblies. By managing tolerances to microns and utilizing high-performance synthetic lubricants, we ensure that power delivery remains uninterrupted under severe dynamic loads.
"We verify the metallurgical composition of each chrome steel batch, ensuring the chemical composition matches standard ASTM requirements for wear resistance."
Why global brands trust Chinese production ecosystems for ATVs and Dirt Bikes
Direct supply lines to major domestic alloy plants ensure consistent steel, aluminum, and compound formulations. This integration minimizes production gaps and protects clients from raw material price volatility.
Our production utilizes automated CNC machining, computerized steel stamping, and automated welding cells. Automated systems ensure dimensional stability across frame geometries and engine mounts, resulting in zero weld defects.
From electrical CDIs and high-brightness LED lighting to precision brakes and hydraulic dampers, China's components network allows for comprehensive integration of parts. This structural network accelerates customization and streamlines sourcing.
Engineered assemblies designed for diverse global requirements
Featuring deep groove, EMQ, and custom tolerance bearings. Developed using clean-smelted steel for minimal noise and wear across demanding industrial, automotive, and micro-motor assemblies.
Braking pads, brake shoes (QS110), engine cylinder kits, performance carburetors, and wear-resistant sprocket-chain groups. Built to meet or exceed OEM specifications.
Comprehensive transmission parts, cooling system units, suspension mounts, and chassis components. Proven reliability for commercial fleets and consumer vehicle maintenance.
Off-road suspension control arms, cv axles, heavy-duty differentials, and rugged frames designed for agricultural utility and demanding outdoor trail environments.
Competiton-ready exhaust pipes, alloy swingarms, shock absorbers, lightweight rims, and high-performance electronic ignition components optimized for motocross tracks.
Precision-aligned steering linkages, hydraulic disc brake assemblies, steel sprockets, and torque converters engineered for recreational and competitive karting lanes.
High-grade aluminum alloy mountain bikes, 22-speed oil brake structures, 29-inch frame configurations, and associated gear sets. Combining structural lightweight characteristics with reliable stopping power for diverse terrains.
Exporting vehicles and precision mechanical assemblies to regions like North America, the European Union, Australia, and South America requires strict adherence to international standards. VETOR GROUP operates in strict accordance with the ISO9001:2015 International Quality Management System, confirming that every product matches international expectations.
For off-road vehicles (ATVs, UTVs, and Dirt Bikes), we support and provide documentation for leading regional compliance regimes:
Evaporative emission testing, catalytic exhaust limits, and fuel hose certifications are standard requirements for US land use compliance.
Adherence to functional safety standards, lighting layout requirements, braking system integrity, and noise ceiling thresholds.
Provision of standardized VIN structures, facilitating smooth vehicle registration and dealer floorplan insurance access.
Our quality checks encompass both non-destructive metallurgical evaluation and physical torture tests. Components like CDI electronics, high-output LED headlights, and brake calipers are exposed to extreme environmental simulations (vibration, heat, and moisture) to replicate years of hard off-road use.
| Test Parameter | Methodology | Target Threshold |
|---|---|---|
| Bearing Noise Level | S910 Vibration Tester | EMQ V1 / Z2 Grade Min |
| Frame Stress Limits | Dynamic Fatigue Press | 150,000 Cycles Zero Deformation |
| CDI Thermal Range | Climate Chamber Aging | -40°C to +120°C Operational |
| Brake Shoes Wear | Friction Dynamometer | Coefficient > 0.42 (Stable) |
Enabling streamlined cross-border operations through customizable services
Our service desk operates Monday through Saturday, from 8:00 to 17:00 (GMT+8). We ensure technical inquiries are addressed within 12 hours, with initial technical layouts and quotes delivered within 24 hours.
We offer customization options for dimensions, seals, materials, branding, packaging, and colors. Our engineering team can develop custom samples in 7-10 days to assist with initial design verification.
Standard orders are processed with typical delivery cycles of 7 to 20 days. Fast access to the ports of Shanghai and Ningbo ensures reliable container loading, custom clearance processing, and shipping scheduling.
Explore VETOR GROUP's production spaces, official standards, and trade shows

















Resolving core technical, operational, and commercial concerns for trade buyers
Engineered components designed for global automotive, motorcycle, and bicycle systems