The 711 are almost exactly like the 712 with a slightly different pattern. I have the 712s and they are great tires, but they wear pretty fast. I have had mine less than 10K miles and i am already thinking about new tires. Mine may have about 40% tread life left, but i also take my car to the track and can do a mighty burn-out. They will probably last 30-35K before needing to be replaced on normal driving.
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