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Two questions about 180 treadwear...
Just from personnal experience.
My 95SET came with the 140 wear rated Pilot HX? tires. I got well over 3 years of life out of them, with lots of highway runs, and some 1000 non stops to Kansas from Ontario!
These were not HP tires, but had great traction in on cold rainy days. My suspension was not tricked up and I did not dive hard into corners, but they never let me down. And they were reasonably smooth and quiet.
I replace those with Pirelli P-zeros which were also 140 wear rated, and they had great wet and dry traction and really stuck in corners and had great turn in response. They had stif sidewalls. But they age hardened and were out of round and I had to dump them with lots of tread left on them.
Wet traction and braking traction are important to me. But I found that 140 rated tires were quite limited in suitable XHP tires. So I got the 180 wear rated Pilot Sports. These are quite good in many respects, but are round. They are great on corners etc. But I do find that their tractive limits wet and dry are not as good as the HX's or P-zero's. I feel that the rubber compound is not developing the road grip that I would like. I attribute this to the 180 tread wear rating.
I do get perhaps 2 or 3 times the tread life out of these soft tires that others experience. Much of that is due to my mostly conservative driving and highway commuting. But I do explore the tractive limit in corners and curves, but I don't consider myself skilled at such things. I do go beyond where the tires start to make noise and begin acting up.
With the other tires I could brake hard on a cold day with heavy rain and get great traction and no tire slipping. Not as good with the 180 wear rated Pilot Sports...
So that is all that I have to go on.
Then on other vehicles, high tread wear ratings translated into the inability to stop on cold wet pavement. And these 'hard' tires would last longer but would cup and make so much noise that I was forced to dump them before I have used up the tread. So I felt that the useful tread life of these was no better than lower tread wear rated tires. So tread wear optimized tire compounds are not good choices except to appeal to one's resentment about tire expense.
posted by 208.24.179...
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