Are tires balanced during manufacturing? Is there a marking on the new tire signifying the perfect balanced area? In return, should the person mounting the tire on a wheel place the mark in alignment with the valve before inflating air and balancing the wheel?
there is a mark on the tire but its a mark to keep in a certain distance from the valve and isn't critical. There is a machine that does spin the tire letting the technician know where weights need to be placed to properly balance the tire. So that being said no tires are not balanced during its manufacturing process.
The tires are marked so you can match the high spot on the wheel to the low spot on the tire since there is no such thing as a perfectly round wheel or tire. That is to ensure roundness, not balance per se. After installing the tire and wheel assembly is then balanced.
