Replacing Tires that Still have Good Tread

[kimona]

Why you might have to replace tires that look new:

https://www.msn.com/en-us/autos/video/why-you-might-have-to-replace-tires-that-look-new/vi-BBVgci5?ocid=spartanntp

[Leegamer]

I've never had to worry about it because I drive quite a bit. I have a friend whose dad has a 94 miata r-model that had the OEM tires until a few years ago. He was a race car driver in the 60s and is super old school.