Can anyone tell me what A disk, O disk and R disk mean when I look at the wheel selections on the Work Wheels website? Which ones do we need for an NSX and why?
Hope you can read Japanese. The disk type has to do with the spacing for big brake kits. This picture might help out a little. Basically you'd pick a "O" disk for the rear to get the max size lip. You'd pick a "R" disk to get max brake clearance and the least amount of lip. "A" disk is somewhere in between.
From what I know, the disc designation "A" / "O" / "R" is in regard to the amount of center piece contour. I recently ordered "R" disc and the lip is still wide but the spokes are contoured more and give a greater brake clearance. The flange that the center attaches to is only a few mm different between the different faces. It is a combination of disc face and rim width that creates "Lip".
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