Service & Warranty

What is VINKA’s after-sales warranty policy?

VINKA will provide full warranty service in the situation of unqualified parts, materials and the problem during manufacturing and processing in Suzhou Wanjia Electric Co., Ltd. (called in short as “VINKA”). Our product enjoys a warranty period of twenty-four months or the 150,000-kilometre limit since the date it is delivered from VINKA factory.

What doesn't VINKA Warranty cover?

While VINKA Warranty offers extensive coverage, there are a few exceptions to what it covers. The warranty does not cover intentional damage, loss, or theft of the product. It also does not cover damage caused by negligence, accidents, or unauthorized repairs. Additionally, normal wear and tear, cosmetic damages, and damage caused by misuse or improper installation are not covered. It's important to carefully review the terms and conditions of the VINKA Warranty to fully understand the coverage limitations. If you have any questions or concerns, our customer service team will be more than happy to assist you.

How should I repair the motor?

For brands, bicycle manufacturer or the dealers:

To have your faulty motor repaired, please contact our customer service team. VINKA will keep the right to choose repair or replacement as the warranty service way when receiving the feedback of quality problems. Please provide the purchase order number as well as the product serial number to the after-sales system of VINKA when quality problems happen. VINKA will offer repairs or replacement free of charge if the product is under the warranty. On the contrary, VINKA will charge for he repair parts, labor and shipment costs according to the current standard.


For individuals:

If you are an individual who needs to repair a faulty motor, please first contact the brand or the dealer of your vehicle. If you are unable to reach them, please get in touch with our customer service team. They will be able to assist you further.


Can I buy VINKA products myself?

If you are interested in VINKA products, please contact our sales team: They will give you professional technical support and product advice. If you require motor repair or replacement, please fill out the form with specific details about your needs. Our after-sales service team will get in touch with you soon.

Where can I buy VINKA products?

1. Get in touch with our sales team at

2. Call us at 086-512-69330851

How can I order a custom product?

If you are looking to order a custom product or the product type you are looking for is not available, please contact us at as we may still be able to assist you.

Product Advice

How do I choose the appropriate product for me?

Compare the products on our website, where you can find our entire range and all technical specifications. Alternatively, contact our sales team – they know all about VINKA products and technologies and can advise you.

Which drive system is best suitable for an eCity?

We have made recommendations on “System” page for different usage scenarios, motor types, and product prices. You can find recommended drive system sets for different scenarios like eCity, eMTB, eRoad or others. If you would like more information, please contact our sales team. They will give you professional technical support and help.

1. Email:

2. Tel: 086-512-69330851


What is the difference between a mid-drive motor and a hub drive motor?

The general difference between a mid-drive and a hub drive motor is of course its location on your bicycle.

A mid-drive motor lives in the bottom bracket area of your bicycle. In other words, it’s basically in the middle of your bike. Your crank arms attach directly to the motor. Mid-drive motors tend to be more consistent and have a more natural pedaling feel, though they are also more expensive and complex.

A hub motor takes the place of your front or rear wheel’s hub. That means the wheel is built around the hub motor. Hub motors are much less expensive, but also generally less sophisticated, than mid-drive systems. While mid-drive motors require a special frame design to accommodate them, hub drive motors can generally be used with any frame design.

Which is better: a hub motor or a mid-drive motor?

Both the hub drive system and mid-drive system offer distinct benefits and drawbacks, so it’s best to approach the question from a cost-versus-performance perspective.

While it’s generally less sophisticated, a hub drive system offers simplicity, lower cost, and enough pedal-assist power for commuting, and even off-road applications.… But if you’re after more performance and better handling, look for a mid-drive system.

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