Your Greenball tires are warranted against failure due to factory defective materials and workmanship for 2 years from invoice date of purchase; verified by original or copy of invoice. If invoice is not available your Greenball tires will be warranted for (4) years from date of manufacture. That information is found within the DOT code.
Any questions regarding Greenball's Warranty policy, please call our warranty specialists at: 1-866-767-9637
If the tire fails due to defective material(s) or workmanship during the first 10% of tread wear, the tire will be replaced with a new comparable tire without charge (see section titled 'What is not covered' for complete details).
For more details on Greenball's Warranty Policy visit http://www.greenball.com/warranty