Changzhou Kingsun Electrical Co., Ltd | Premium Electric Bike Motors & Conversion Kits

About Kingsun Electrical

Changzhou Kingsun Electrical Co., Ltd is a leading manufacturer and exporter based in Changzhou, Jiangsu Province, China. With years of experience in the electric mobility industry, we have established ourselves as a trusted supplier of high-performance electric bike motors, hub motors, power wheelchair motors, lithium batteries, and complete DIY conversion kits.

Our state-of-the-art production facility ensures strict quality control and innovation at every stage. From geared motors to cassette systems, we deliver reliable, energy-efficient solutions for e-bike enthusiasts, distributors, and OEM partners around the globe.

Factory-direct pricing
ISO & CE certified manufacturing
Global shipping & fast delivery
Custom OEM/ODM support

Discover Our Product Range →

Our Product Range

High-performance motors, conversion kits, and components designed for durability, efficiency, and seamless integration.

Fat Motor Kit

High-torque motor designed for fat-tire electric bikes, ideal for off-road and rugged terrain performance.

Type: Hub Motor
Application: Fat Tire E-Bikes
Efficiency: High Torque Output

48V 1000W Conversion Kit

Complete DIY kit for converting standard bicycles into powerful electric bikes with long-range capability.

Voltage: 48V
Power: 1000W
Kit Includes: Motor, Controller, Throttle

2000W Cassette Motor

High-power rear cassette motor for performance e-bikes, offering smooth shifting and maximum acceleration.

Power: 2000W
Design: Cassette Integration
Ideal For: High-Speed E-Bikes

1000W Fat Rim Kit

All-in-one wheel solution with integrated motor and rim, perfect for fat-tire e-bike builds.

Power: 1000W
Wheel Size: 26" or 27.5"
Type: Front/Rear Hub

28'' Geared Motor Kit

Efficient geared hub motor optimized for 28-inch wheels, delivering excellent hill-climbing ability.

Wheel Size: 28 Inch
Type: Geared Hub Motor
Efficiency: High Torque at Low Speed

48V 1500W Ebike Conversion Kit

High-performance conversion system for heavy-duty e-bikes, offering superior speed and range.

Voltage: 48V
Power: 1500W
Includes: Motor, Battery Mount, Wiring

Controller Built-in Motor Kit

Integrated design with embedded controller for compact installation and reduced wiring complexity.

Feature: Built-in Controller
Type: Direct Drive or Geared
Compatibility: Universal Frame Fit

Li-Ion Battery Pack

High-capacity lithium-ion batteries for extended range and reliable power delivery across all e-bike systems.

Voltage: 36V / 48V / 52V
Capacity: 10Ah to 20Ah
Cells: Grade A Lithium-ion

View Full Catalog

Why Choose Kingsun Electrical?

We combine innovation, quality, and reliability to deliver superior electric mobility solutions.

Factory Direct

Eliminate middlemen. Source high-quality motors and kits directly from our manufacturing facility in Changzhou.

Quality Assured

All products undergo rigorous testing for durability, efficiency, and safety compliance (CE, ISO standards).

High Performance

Engineered for maximum torque, speed, and range – ideal for both urban commuting and off-road adventures.

Global Support

We ship worldwide with responsive customer service and technical support for distributors and partners.

Frequently Asked Questions

Get answers to common inquiries about our products, shipping, and support.

Do you offer OEM/ODM services?

Yes, we provide full OEM and ODM support including custom branding, packaging, and technical specifications.

What certifications do your products have?

Our motors and kits are CE and ISO certified, meeting international safety and quality standards.

How long does shipping take?

Typical delivery time is 15–25 days via sea freight. Express air shipping is available upon request.

Can I get samples before placing a bulk order?

Yes, sample orders are available. Contact us for pricing and availability.

What payment methods do you accept?

We accept T/T (Bank Transfer), L/C, and Alibaba Trade Assurance for secure transactions.

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Kingsun Electrical – Powering the Future of Mobility