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
Popular Questions
- What is your ASTRO or ASTRO PRO's features?
- How many miles does the battery last for every full charge?
- Can someone easily steal my battery?
- What are the height and weight limits for riders?
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 letstalk@c3strom.com
Email us
You can expect a reply within 24-48 hours.
For Pre-sale inquiry:
letstalk@c3strom
For After-sale and Tech support: support@c3strom.com
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.