Not going to argue one way or the other with your decision REF, but 7k is low from my ST experience. That's closer to what I get on the RC for rear wear, and my ST was always right around 15,000 km (9300 mi), always ran 36 psi rear too.
Bare in mind 7K is based on when the former owner changed it. Maybe he was inaccurate. I think 9 is a good average.
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