Tire pressure has lot to do with life of tires. On my cart 25 psi is the sweet spot, even wear 15K miles which in my case about 6 years. With 1/2 or less of tread left now my concern is dry rot. So I replace them at 8 year mark regardless of miles/hours. Cart tires aren’t important as vehicle aged tires, But that me. I have never had blowout or tire shredded from dry rot on any vehicle I’ve owned.
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