Balancing that size tire and wheel is not easy; techs need to know what the hell they're doing. I had to take mine THREE freaking times until they were finally balanced correctly. And the weird thing is every time the weights were in totally different locations, when the same darn machine was used
. Apparently offset, wheel width, diameter, and complete tire size had to be input into the Hunter 9700 machine for proper balancing. Before they just slapped the tire in the machine and that was it. Both previous times nothing seemed wrong until I hit about 70 mph.