I'm not specifically referencing Toyo here. I disagree with the statement that all manufacturers make good and bad tires. That's a pretty broad statement and it's not true. Plus, define "bad" in this regard. Are we talking about tires that have failed due to some manufacturing defect? In that case, then all manufacturers can be included for all of the lines they make. But the adjustment rate average for the industry is less than 1/10th of 1%. So, just because a manufacturer has a few tires that didn't hold up for some reason, is it reasonable to call the whole line bad? Every car manufacturer has cars that have defects or problems. Are they ALL bad, or is that a normal and reasonable expectation in manufacturing?
Or is the definition of bad more to do with the way the tire performs? A lot of people don't like the stock Michelins because of their performance in the snow or because they are not aggressive enough. That doesn't make it a bad tire. The tire does well what it was designed to do and that is deliver a smooth, quiet ride, reasonable grip for most conditions and gives good tread life. I don't think I've seen a post yet about these tires separating. If a tire does not meet your expectations of performance, then I wouldn't say it's a "bad" tire, perhaps it's a misapplication.
My definition of a "bad" tire is a line that does not live up to its intended application, or a tire that has a high rate of adjustment. This is a rare occurence, given the amount of research and testing done before a tire ever hits the market and the amount of specialized testing equipment all the major manufacturers employ. Very few manufacturers, especially the majors, IMO, have truly "bad" tires anymore.
Let me clarify my original statement as I dont think I went into enough detail of what I meant. I was referring to peoples posts about tires. Guy A might come in and say I have Yokohamas, they are crappy tires. Well he doesnt tell you WHAT tire he is running. He might be running an ES max performance summer tire in Michigan in December..... so to him, the tires are bad. Guy B might come in and say he is running Michelin Pilot's and he thinks they are a great all-season tire. However we dont know if he is running Pilot A/S or the Pilot HXMX or whatever we have on our cars. Guy C might come in and say I have Kumho's and they were horrible and they wore bald on me after 35,000 miles compared to my Bridgestones. Well, since he didnt post what model he was using, they might have been designed to be a very soft and comfortable tire with no road noise that wasnt designed as a high mileage tire. His Bridgestones might have been a hard tire designed for 60,000 miles.
I was referring to the usefullness of this thread and people telling you that their tires are good or bad. As you already know, having a reviewer say a tire is good or bad greatly depends on not the tire brand, but on the tire model and if it is being used properly for how it was designed to be used.
Therefore based on PEOPLES reviews, all tire companies make "good" and "bad" tires but that doesnt necessarily mean the actual tires are good or bad. Like you said before, every person has different expectations when it comes to tires.
I hope that clarifies up my post..... I thought it was clear what I meant but you might have taken what I said differently......
I added "based on peoples reviews" to clear up what I was trying to get at.......