Why a relative replaced some perfectly good Michelin Tires?

I don't think so, at least not with Michelins. Lemmie splain, Lucy. Michelin tires have VERY long lasting treads. So long in fact, that the tread outlasts the tire carcass' useful lifespan.

In other words, there is a great probability that the tire will separate before the tread wears out. I was on my way to work on Mother's day 2016 when my left front tire exploded. Yes, I had a set of older Michelin tires. The tread was great, but the sidewalls had minute cracking. Being in the tire business several years, I knew they were dangerous, but hoped they would last a little longer. They did not.

I would be leery of Michelins especially after one has been violated.

I don't think so, at least not with Michelins. Lemmie splain, Lucy. Michelin tires have VERY long lasting treads. So long in fact, that the tread outlasts the tire carcass' useful lifespan.

In other words, there is a great probability that the tire will separate before the tread wears out. I was on my way to work on Mother's day 2016 when my left front tire exploded. Yes, I had a set of older Michelin tires. The tread was great, but the sidewalls had minute cracking. Being in the tire business several years, I knew they were dangerous, but hoped they would last a little longer. They did not.

I would be leery of Michelins especially after one has been violated.
Lol Nice RRR
Good to know that someone thinks like me (Lemmie splain, Lucy). I use that on my wife all the time. She is a redhead and I sometimes call her Lucy. I will also at times when I come through the door and shout "Hey Lucy, I'm home"