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Power Your Ride with Smart E-Bike Technology

Hangzhou Hongyi Tech Co., Ltd specializes in high-performance electric bicycle systems — from complete e-bikes to conversion kits, motors, batteries, and smart components. Empowering riders worldwide since 2005.

Electric Bike E-Bike Kit Fat Tire E-Bike

About Hangzhou Hongyi Tech

We believe that cycling is for everyone — not just the fit and the young. Whether you're riding a mountain bike through forest trails, climbing hills on a cross bike, speeding down roads, or pulling your kids on a tag-along, few things match the joy and freedom of cycling.

With the power of electricity, there's no reason to miss out. That’s why we founded Hangzhou Hongyi Tech Co., Ltd — to bring accessible, high-quality electric bicycle solutions to riders around the world.

Our product line reflects our passion and professionalism. Whether you're looking for e-cycles for commuting, touring, or weekend adventures, we offer the best choices in electric bike conversion kits, mountain and city e-bikes, fat tire models, and all related components.

Factory or Team

Our Premium Products

From powerful motors to long-range batteries and complete e-bike systems, our components are engineered for performance, reliability, and ease of integration.

HY-27-MTB

HY-27-MTB

High-torque mountain e-bike with durable frame and off-road performance.

HY-700-F2

HY-700-F2

City commuter e-bike with sleek design and integrated battery system.

HY-26-FAT2

HY-26-FAT2

Fat tire electric bike built for snow, sand, and rugged terrain.

BBS02B-500W/750W

BBS02B 500W/750W

Mid-drive motor kit with torque sensor, ideal for DIY e-bike conversions.

RM G06(FAT)

RM G06 (FAT)

Robust fat tire conversion kit with brushless motor and LCD display.

QT01 Battery

QT01 Battery

48V 13Ah lithium-ion battery with Samsung cells and IP65 protection.

BBSHD-1000W

BBSHD-1000W

High-power mid-drive motor for extreme torque and hill-climbing ability.

DS-C Battery

DS-C Battery

Frame-integrated battery with 52V 17.5Ah capacity and smart BMS.

1101 Battery

1101 Battery

Compact 36V 10Ah pack for lightweight e-bike builds and retrofits.

850C Motor

850C Motor

Front hub motor with 850W output and regenerative braking support.

DGW22 Controller

DGW22 Controller

Intelligent e-bike controller with Bluetooth diagnostics and tuning.

E-Bike Display

Smart Display Unit

Color LCD with speed, battery, trip data, and app connectivity.

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Why Choose PowerSurround?

Engineered for performance, durability, and seamless integration.

High-Performance Motors

From 500W to 1000W+ BBS series mid-drives to powerful hub motors, our systems deliver unmatched torque and efficiency.

Smart Battery Systems

Lithium-ion packs with Samsung/LG cells, advanced BMS, and IP65 weather resistance for long life and safety.

Reliable & Tested

All components undergo rigorous testing for durability, heat resistance, and long-term performance.

Global Support

Trusted by distributors and builders in North America, Europe, and Asia with responsive technical support.

Easy Integration

Plug-and-play kits with clear wiring diagrams and universal mounting standards.

Innovation Since 2005

Over 15 years of R&D in e-bike technology, continuously improving efficiency and rider experience.

15+
Years in Industry
50+
Countries Served
100K+
Units Shipped
20+
Patents Held

Frequently Asked Questions

What is an e-bike conversion kit?

An e-bike conversion kit allows you to turn a regular bicycle into an electric one. It typically includes a motor, battery, controller, display, and sensors.

Are your motors compatible with all bikes?

Most of our mid-drive and hub motor kits fit standard frame geometries. Please check the product specs or contact us for compatibility details.

Do you offer OEM/ODM services?

Yes, Hangzhou Hongyi Tech offers custom branding, packaging, and engineering support for bulk orders and private label partnerships.

How long does shipping take?

Shipping times vary by destination. Typically 7–15 business days for international air freight. Express options available.

What warranty do you provide?

We offer a 1-year limited warranty on all motors, batteries, and electronic components against manufacturing defects.

Get in Touch

For inquiries, technical support, or partnership opportunities, reach out to our team.

+86 13805718855
No.109, HongXing Road, Xiaoshan District, Hangzhou, China

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