If you have a 275 you probably have a 9 inch wide wheel. That is a typical size to go on a 9.But thats not saying that it cant go on a wider wheel eighther.

 

ok thanks, later today im going to check how wide they are

 

agreed. what i do at work is we measure lip to lip, of course i use a tool thats specific for it. the casting thats actually stamped on the wheel isnt always correect. dont ask me why. cause ill measure it and the number will be different.

 

You're measuring between the outsides of the wheel flanges with the outside caliper that's used for setting up the balancer. Dimension A minus Dimensions B and C in my sketch above.

Nominal wheel width is the width that the tire mounts to and is an inside measurement that you can't get to with the tire mounted, and that dimension doesn't matter for balancing purposes anyway. I'm guessing that your typical difference is that inch and an eighth, give or take a little.


Norm