according to this calculator the 255/50 is 1 inch overall wider than the 255/45. And every guy I've ever known would take an extra inch lol.But it's only a half inch in total height difference, so a quarter inch of sidewall. 255/45 vs 255/50. Going to 255/55 is an inch overall taller
https://tire-calc.com/comparison/255-50 ... -r20-inch/
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Well I found out if I go up that little size I can get the Micheline Defender LTXs so I’m damn sold lol