I have always Run Metzlers on my Ventures and generally got around 20 to 22,000 miles out of them. The rear tires I may get 11,000 if I make sure I keep them inflated properly.
Trying to remember the science but certain tires years ago on cars couldn’t be reversed or belts would break. Bias ply maybe??? Once you started them one direction you only rotated front and back on same side.
Any body with input on that or is my rememberer malfunctioning again?