usofrob
Well-Known Member
I think it only covers that weight at max PSI. But I think the max PSI is about the same as the recommended PSI.In theory you could go as low as 113 for a rating. Looking at the door sticker the rear axle carries the most weight of the GVWR at 4960 for the R1S and 113 is 2535 which covers the rear axle and still is over 10k for the vehicle with a GVWR of 8532
It should be noted that in another thread someone took a picture of the 22" tires showing a load index of 116. So, all 3 sizes of tire have a load index of 116. It seems that's what Rivian wanted. I too would like to use some 113 tires eventually, but I'm glad I don't need to decide right now.
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