for canada at least...if you configure an x5 on bmw.ca you have the option of two sets of winter tires, one 20" square 275s and one 21" 275s front and 315s rear. style 748 and 741 respectively.
i was leaning toward the 21" as it more closely matches the summer config with the nice wide tires on the back (i realize that isn't the best for performance but willing to trade for looks)
i asked the dealer and he said the 21"s weren't showing as an option for the 2025 m60. anyone intending to use these?