The tread depth is just about 6 millimeters, which is excellent and more than sufficient for another two seasons of driving. Some reviews claimed that the rubber broke apart into shards as they drove, but I found no evidence of this in my experience. I would advise anyone looking to purchase tires to do so with caution, and to do it as recently as possible relative to the year of production (my set was three months old when I took them). If you don't believe me, read on. In most cases, this is still the most cost-effective choice.