1600 is light. "normal" 35x12.5 tires are more the 1k higher. those tires are made for light weight vehicles. it may calculate to hold a vehecle weight but when mobbing hard for long miles hitting squared edges/rocks/low psi, one is putting damage over the load rating of a 113. I just got new tires because the sidewalls had major signs of bruising. I have tires separate because of the abuse. I know roy builds bad ass stuff but just because these tires are round, i would keep inspecting these tires often. I have learned the hard way by seeing people run used inferior tires have problems. some kinda funny, some life changing. just be careful.