LOL. Hmmm; sorry but no skewing involved here and no rounding-off was done, as my spec quotations were taken directly from the TireRack website and then re-confirmed with the manufacturer website of General Tire. Not sure where you got your sizing data, and BTW your math difference is 2 HUNDRETHS, not 2 tenths (got cha').
After a quick re-visit to both TireRack & General Tire websites, I discovered the 265/50R20 (30.4" O.D./37 lbs) is "discontinued" in the Grabber UHP. However, there are numerous comparable tires by other brands at www.Tires-Easy.com in that same specific size available.
I agree the wheels are the culprit in creating the massive rubbing issues, as is too often the case with many aftermarket wheels placed on the VX. Perhaps that's why the wheels are marked 73% off on sale, as nobody else wanted to buy the weird off-set. Go figure.
If the Grabber UHP still has to be the "chosen" tire, then perhaps an alternate size of 275/45R20 (29.7" O.D./33.6 lbs) might work-out. At 29.7" O.D., it is almost dead-on with the OEM tire. Further, the size of 275/45R20 should be thrown into the mix of overall consideration as well.
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