Under the circumstances that an ORTEC or UTECH OTR tire becomes unserviceable due to manufacturing defects, you can contact Ortec and file a claim for warranty. You are only requested to send us several pictures of the failed part and let us know info as simple as the purchasing date and serial number. The Ortec engineer will analyze to make you informed in 7 working days whether the failure is covered by this limited warranty. If it is covered by warranty, Ortec, at its option, will: repair or replace it with a comparable new OTR radial tire; discount on a pro-rata basis, or issue an appropriate credit in favor of the eligible party. For details, pls refer to the RADIAL OFF THE ROAD TIRE LIMITED WARRANTY and BIAS OFF THE ROAD TIRE LIMITED WARRANTY in the info center.