J
The tire does not "know" where the offset is. If you put on 1" wider tires, the tire will hang over the rim an extra 1/2" on either side of the rim. So two tires would add a total of 1" to the overall width.
I suppose it's possible for someone to design a tire with an asymmetrical cross section, but I've never seen one, and not sure why someone would go to the trouble.
I suppose it's possible for someone to design a tire with an asymmetrical cross section, but I've never seen one, and not sure why someone would go to the trouble.