| tread separation | 1.84 | Many of the complaints involve sudden tread separation. | ||
| tread design | 0.33 | The two front tires should match each other in tread design and size, as should the two rears. | ||
| tread mark | 0.33 | Tire tread marks crisscrossed it. | ||
| tread depth | 0.26 | An easy way to check tread depth is to use the penny test. |