I'm looking into getting some historic tires from Dunlop to my car to use on the original wheels, but these Dunlop's don't have the measurments written as usual. Here is an example for one of the tires: 430/1160-15. How do these measurments compare to the usual way of putting it (like 285/50-15)?

I guess the last 15 means 15".....

No idea. You might contact them for the conversion and specific measurements.

Already done, but don't want to wait for the respond..

Not sure how the number significance works but a Dunlop 430/1160-15 Post Historic tire is;

Rim widths 7.0-11.0"
Ideal Rim 9.5"
Diameter 23.7"
Cross Section 11.3"
Tread Width 9.1"
Aspect 38%

Julian

Thanks, but where did you find that? Their CR82 tires are made in a few sizes, and I would like to know how big the others are too.

Does this help?

YES!

Thanks. Will save that one.