Rear derailleur replacement UNION, GH-139, Trek

Frame sets (frame and rigid fork), main frames and rear forks on full-suspension bicycles are covered by a lifetime warranty for the original owner.

You can read more about Trek's warranty issues here:

https://www.trekbikes.com/fi/fi_FI/inside_trek/warrantied_for_life/

Trek is known for its top quality and innovative solutions. When you choose a Trek, you get a bike designed to last and provide the best riding experience possible. Its materials, including lightweight but durable frames, combined with advanced technology, ensure reliability in all conditions. Trek also invests in environmentally friendly production methods, making it a responsible choice. The extensive range offers options for both enthusiasts and professionals.