Opinions on Sumitomo HTR Z III Tires

[mikesz]

Just bought a set for my 99 boxster and have no complaints so far. from what I read they tend to wear quickly due to softer compound but since I only expect to put 3-5k per year they should last at least 5 years so I am ok with that.

[mountainman]

Just checked mine and The last rear sumitomos lasted about 7500 miles and the ones I have on the rear now have 4K on them and are at least half gone. Fronts last for 2 rear sets. This is on a boxster S with tiptronic. Granted, I live in the mountains where curves are the norm and I drive it like it was a Porsche. Hankooks last me at least 4K to 5K longer.

[boxster6354]

Just this weekend I had an "Inner Tread Separation" (That's what the tire shop said) on my front driver side, was driving down the freeway at 60 mph and all hell broke loose with major vibration, lucky the next exit had a tire shop. I had a look at the tire and outside looked fine but once they took it off the rim I was surprised at the amount of rubber destroyed on the inside

Had maybe 3,000 miles on the front tires.