Tire brand: Sumitomo tire line: Htr A/S P02 tire size: 225/40R18 92W component: Bubble in tread area, not sidewall dot number: Lm6R2916 and lm6R2416 two front tires were puchased new from amazon.com in may of 2017 and were immediately installed and put into sevice. There were approxiamately 30K miles on the tires. The first front tire failed in July of 2020 (lm6R2916) and the second front tire failed in April of 2021 (lm6R2416). No specific events led to the failure of each tire and ocrrued during normal driving. The first tire started making a weird wobbling noise at highway speeds. Inspection reavealed on large bubble on the inner portion of the tread. The second tire failure occurred after strange noises as if a rock was stuck in the tire. Inspection revealed a small bubble forming on the inner tread. All four tires were replaced. A warranty claimed was attempted with sumitomo. They refused to honor a warranty and told me the vendor would take care of the warranty claim. Amazon.com refunded the purchase price.

- Las Vegas, NV, USA