I also have spyderlocks with Toyo Open Country tire and they balance out great. Love the spyderlocks you have a great wheel.

 

This thread makes no sense to me. If you get your rims and tires balanced, why would you need to re-balance them 2 months later? Scientifically it makes no sense. It is either balanced or it isn't. Its not going to change unless you get uneven mud on the inside of the rim, or tear off a chunk of rubber, or get water in the rim, or tear off a weight. Either way,, none of these possibilities is the fault of the tire or the rim.,,,,,, Am I wrong?