trdb
Member
Also just another follow up, I was double checking with the manual. The Pirelli's have 42 PSI in the owners' manual and there's ranges of 39 - 45 PSI so is not hitting the upper limit that detrimental to the car? I understand it can impact range but other than that what am I sacrificing?
@camalaio did a good job describing it above.
it really comes down to your preferences. I really wanted the WS90s as well, and ordered them, only to realize after the fact that the sidewall has max 44psi stamped into it. I know there is a safety factor and all that built in to the tire, but running at, or near the limit, of the tire design was too much risk for me. So I exchanged for a set of X-Ice. I had them (XIce) on my previous car and they were good enough in most situations and actually more quiet than the all seasons I used for the rest of the year. Good treadwear on them as well.
Not so big of a deal since it sounds like you’re mounting the tires on the rims off of the car, but some tire shops won’t mount the tires/rims on the car if the load rating doesn’t at least meet the original equipment tire. Again, moot point if you’re doing this yourself.
You could probably use them and have no issues. Tesla themselves claim you can run the PSI way down to 35 if you want more comfort. So I dunno... I’m gonna read the link @N.Y.R. posted above just for my own curiosity too.