Prodeco Storm Electric Folding Bike- Lithium Powered, 17+mph, 25 Mile Range, 2 Year Warranty, Built in the USA! Patented Aluminum Folding Frames - Fabricated from aircraft grade aluminum, the Prodeco Storm's frame is designed for strength, portability, comfort, quality and longevity while maintaining a unique style. Ships Assembled - The Storm's folding frame allows the bicycle to be shipped fully assembled. USA Built - All Prodeco electric bicycles are designed, assembled and quality controlled in the USA. 2 Year Front to Back Warranty - A full part replacement EZ warranty remains in effect for 2 years from the date of purchase. If any component fails during this time, it will be replaced for a new component. Rust and Corrosion Resistant - The outdoor environment is a bike's worst enemy. The Storm utilizes aluminum alloys, stainless steels and cromoly for 95% of all components and hardware.