[BMW Rolls]

I'm narrowing the wheel choices and am working on tires. Keeping the same outside diameter will protect the xDrive and I've found a fair amount of misinformation out there.

I will read the spec sheets before pulling the trigger on tires but I've been told on one particular tire a 285 in the rear is the same OD as the 245 up front, and have heard the same about 275's.

I'll solve it by looking at the tire specs myself, most are found online from the tire manufacturer.... But has anyone seen this too?

Thanks