We had these on the SC for 20,000 miles/ 2 years J90.
Superb and comfortable tyre. Weak/ soft side walls etc... often mentioned.
To avert an inevitable collision due to an oncoming car spinning out of control in our direction, I had to rapidly mount a high kerb (free of pedestrians!). Collision averted, the wheel took one helluva bang but all was checked out and no alloy or tyre damage.
They were actually main dealer fitted when we bought the car.
Used only 'on road' albeit in all weathers, our experience was that this is a very, very good tyre which never troubled us with road noise. They are comparatively cheap too.
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