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I have vibrations in my c7 and i went away and ask them to road force balance my set of wheels. They told me that it did not work becaus the tyres was to bad so its not going to help and wanted to sell me new tires. i notice that on the wheels it was marking 13,5 and 15 on the back wheel and 34,5 and 35 on the front wheels what does that stand for? I assume that it is the pressure but should it be 15 or 35? maybe not all tires are bad
Road Force essentially places a number on how egg shaped the wheel tire assembly is or how out of round it is. You can a perfect dynamic balance on a tire but if it is not round it can feel like an out of balanced tire. The Hunter RF balancer has a roller that measures for this and assigned a number to the amount of eccentricity, a higher number means more out of round.