Every Dahon and Tern bike from ThorUSA has a limited manufacturers warranty, right out of the box. When you receive your bike, unpack it and then write down the information in the booklet provided. Then either mail the warranty card or log onto www.dahonbikes.com respectively to Tern www.ternbicycles.com.
Most folks, who have a very basic working knowledge of bicycles can easily get the bike ready to roll.