D4 max rear axle weight is 1855kg. D4 19" rims are 8" wide whereas their 20" are 8.5" wide. I'll fit D4 19" rims when my 275/55R20 need replacing if an acceptable 255/60R19 tyre is available.
Is you desire for 8.5" for 20" or for 19"? If for 19", I'm curious as to what size tyre requires 8.5" width.
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