The entire frame is guaranteed against faulty materials and workmanship for as long as the initial consumer purchaser has the bicycle, subject to the conditions of the warranty, see website for more info. All other parts of the unit except normal wear parts are warranted against defective materials and workmanship for a period of one (1) year from the date of purchase by the initial consumer purchaser, subject to the terms and conditions of the warranty, see website for more info. Please contact Hyper Bicycles with the model and serial number, date of purchase, store where purchased, and the nature of the failure at service@hyperbicycles.com. Call 1-866-204-9737 Mon