I know next to nothing about tires, other than what my brother the tire expert has told me, and that was mostly about the materials used in and the construction of the tires. (And how most people get flats). With that forewarning, I'd probably back off by a couple of psi if it's that hot. In fact I might even drop down to 38 psi cold, especially if I was going longer distances. I just don't see any advantage in pushing the inflation that hard.
For me the difference in cold and running tires is 3 psi, maybe 4 psi max. Not all that different.
For me the difference in cold and running tires is 3 psi, maybe 4 psi max. Not all that different.
