I had some Goodyear G104 RST tires on my step deck that I just changed. Many of them turned all lumpy and had really funny wear. I got about 290,000 kms out of them (181,000 miles). Is this a good amount of miles for small trailer tires that started at 13/32nds? I had maybe 3 of them that wore even and they could've gone much longer. The insides had funny river wear and one of the outsides got lumpy on both sides alternating all the way around the tire.
I consistently ran 120 psi in them for Canadian weights. Just switched to Bridgestone R195F tires that start at 11/32. Hoping the shallower depth will prevent funny wear. The trailer shocks are changed about every 18 months. They're in good shape.
With the new tires I can be legal for Canadian weights at 110 psi, but I'm wondering if I should add an automatic tire inflation system to reduce the pressure when I'm light, to 80 psi or even less. I think part of the problem is all the empty miles I do (sometimes 1000+ miles a month) on 120 psi tires.
Wheel bearings are good, shocks are good, and I'm going to have the bushings and alignment checked out soon.