19.5s are 14 ply rated minimum just like 22.5s. Granted, it is a bit smaller tire, therefore it has a smaller contact patch reducing its weight carrying capacity when compared to a 22.5 but they're also rated for less capacity and used on lighter vehicles where a 22.5 isn't necessary. But the...
Michelins dry rot faster than any other tire because they use a harder rubber compound. That's why you can get so many more miles out of them than other tires. They're good for vehicles that see a lot of miles in short periods of time but not good for a vehicle that sits (especially in the sun)...
I buy tires wholesale and the warehouses I buy from have a 3 year policy on date codes. Their policy says that tires have a 3 year shelf life meaning that they sell a tire as new with a date code up to 3 years old. Not saying that they don't move the tires a lot faster than that but that's their...