This page is for customers on eBay/Amazon/Aliexpress/Tomtop/Gearbest/etc.  of F-wheel distributors/wholesalers/agents.

We’ll help you to notify the direct seller to solve the problem ASAP.

DYU D1 Smart Bike Function and Breif User Guide – APP Download/ Bluetooth Connection/ Password/ Cruise Mode Setting Etc.

Example:

Name: John

Email: john@gmails.com

Link: www.amazon.com/product/dyubbike

Order number: 12345678

Message: I can’t use the APP.

Please follow above example or we’ll have problem getting in touch with the direct seller for you.

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We'll reply your questions & needs within 6 hours in workdays.
We'd love to hear your voice!












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Details Page: After Sales Service