Winter Tire Recommendations - Official BMW Recommendations

[X5 in AK]

My 2001 4.4 came with a 235/65/17 spare tire, so I knew that 17s would fit on it, in place of the stock 19s.

I run 245/65/17 Bridgestone Blizzak DM-Z3 in the winter, mounted on a set of factory BMW double spoke rims (don't know the style number, they were standard on some of the later model X5s). The 'ideal' size is 235/65/17, this tire is exactly the same diameter as the stockers, but I chose the 245s because I don't like the way the 235s look, a bit too narrow. The 245s are 0.5 inch taller than stock, but that little amount doesn't harm anything, other than my speedo being about 1 mph more off.