At the risk of asking a dumb#$$ question I am wondering if there is any problem other than looks swapping 275/60/R20s for 275/55/R20s? I had a 2018 Platinum with 20” polished aluminum wheels. Kept them with Toyo snows and updated to a 2022 Platinum with 20” polished aluminum wheels. I had some road rash repaired on the older wheels and powder coated black. Was planning on running them as winter wheels. Went to swap wheels and realized they looked smaller, completely missed the fact that tire sizes were smaller on the 2018 even though rim size was the same.
‘Other than the fact that these wheels look significantly smaller, is there any impact to speedo, BlueCruise or such given the smaller sidewall?

 

I don't think that will cause any issues. Here is some info on the difference between those two tire sizes.

 

Since the diameter is smaller, your speedometer will read a bit faster than you are actually going. Your gearing will effectively be a little lower.
No safety issues I'm aware of.

 

Thanks for the chart, very helpful!

 

Thanks. I remain surprised at how small they look compared to the 275/60s. 1 inch makes a difference…