15 X 12

[rag231]

What would have to be done to get a 15 X 12 to fit on the Gn, or should I just stick with the 15 X 10 with the 5 inch backspacing. Money is an object!

 

[GNVYUS 1]

With a frame notch many with 325/50's ( 12.8" section width ) run a 5" B.S. with a total of 6.4" going towards the frame. This would mean with a 12" wide rim on a 325 you would want a backspacing of 6" to give you the 6.4".

I don't see the reason other than getting a slightly flatter contact patch but it's probably not worth the rotating mass gain.