Cutting up vintage mag wheels to get what you want

[TheNovaMan]

A couple summers ago, I talked to a guy at Stockton Wheel about rechroming Cragars and making them different sizes. I don't know how much of this applies to Keystones, but this is what he told me about Cragars. The 14" and 15" wheels use the same centers, except the 15x4 skinnies, which require a larger diameter center because the ID of a 15x4 rim is larger than the regular center sections. Current production Cragar skinnies are 4.5" wide so that they can use the same center section as the rest of the wheels.

My guess is if you want to turn your 14xSomething Keystones into 15x4 skinnies, it probably won't work. However, you could probably have them made into 15x4.5 skinnies and 99.9% of people wouldn't even know they weren't originally made that way.