Marks on tire for mounting alignment

[noxqqes]

Does the manufacturer mark the tire so that the heavy side of the tire is opposite the valve?  My Tourance tires have marks that are to be aligned withe the valve when the tire is mounted.   I've noticed that the balance weights for both wheels with my Tourance tires are on the same side of the wheel as the valve.

It would make sense because the weight of the valve assembly would be part of the weight to balance the wheel therefore requiring less weight to be added to achieve balance.  Does anybody know if this is indeed the reason for the alignment marks on the tire?

[chairhead]

Does the manufacturer mark the tire so that the heavy side of the tire is opposite the valve?  My Tourance tires have marks that are to be aligned withe the valve when the tire is mounted.   I've noticed that the balance weights for both wheels with my Tourance tires are on the same side of the wheel as the valve.

It would make sense because the weight of the valve assembly would be part of the weight to balance the wheel therefore requiring less weight to be added to achieve balance.  Does anybody know if this is indeed the reason for the alignment marks on the tire?

This side of the pond the tyre should have a yellow dot,
this should be mounted by the valve as it indicates the lightest point of the tyre,thus making the balancing of the wheel slightly easier

[iansoady]

It's usually yellow (and a red dot showing the high point) but I believe some manufacturers use other colours so it can be confusing.

According to this site Metzeler use 2 red dots.

Confused? I certainly am.

[Mustang]

It's usually yellow (and a red dot showing the high point) but I believe some manufacturers use other colours so it can be confusing.

According to this site Metzeler use 2 red dots.

Confused? I certainly am.

and Shinko claims that the marks they use are just inspection marks and have nothing to do with balancing .........hhhhmmmmmmm