X-Treme Electric Bicycles & Scooters has been in business since 1999 and has become a household "name brand" in the industry. Its manufacturing plant and headquarters are based in Hong Kong, but all customer service, technical support, as well as their warehouse, are in the United States.
Every product they sell has at least a 30-day warranty, with several models offering 1-2 year warranties. They stock replacement parts in their U.S. warehouse . They offer free telephone technical support for the life of their products.