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C3STROM Support & Contact

How can we help?

Got a question? We have a handy troubleshooting tool to help diagnose any issue.
Feel free to contact us for additional support or if you just wanna rap.

Before You Buy

Shipping & Orders-General info about shipping,orders,statuses and more.


Warranty & Returns-Our warranty coverage & return policy.

How to use-Staying safe with E-bikes.

FAQ-Frequently Asked Questions

Popular Questions

About Us

    C3STROM is an ebike company with a difference; we put the varied needs of the rider first.

    Our goal is to bring you the most innovative ebikes to satisfy your longing for technological novelty. With a dedicated team in R&D, we constantly seek to implement cutting edge solutions for the challenges faced by modern commuters.

    We take great pride in offering a high degree professionalism at every stage of manufacturing process from design to shipping, culminating in finely tuned original products that customers can rely on.

How to get in touch

We look forward to any feedback from you about our services or our product.
We value your comments and strive to improve our products and services.
Reach out to us at

Email us

You can expect a reply within 24-48 hours.

For Pre-sale inquiry:

For After-sale and Tech support:

Social media

C3STROM representatives are
available on the following platforms.

LA Support Center Adress:

18247 Parthenia St.
Northridge, CA 91325


Warehouse Address:

4250 Shirley Ave
El Monte, CA 91731

We currently only sell our products to customers in the United States and Canada. Please note that we do not sell to countries that prohibit the sale of our products, such as Hong Kong. Please feel free to contact us if you have any further questions.


Our stylish, extremely speedable ASTRO ebikes are sure-fire hits for everyone on your list.