V70 - Running 2 Tire Sizes - STC/ABS Issues?

[a3inverter]

All,

Looking at some 17" wheels off an S80 f/9or sale locally and noticing that they are of two sizes. 215/50R17 and 225/50R17. I'm reasonably sure the wheels will fit by V70 (I have 235/45R17's).

Using a tire comparison calculator, I note that the 215's will spin 797 revs per mile and the 225's spin 780 revs per mile.

Will this inconsistency cause issues with STC or ABS? I had thought those systems (maybe just STC) compared wheel speeds and took action when they were different - but wouldn't there then be an issue with the front wheels while turning...

Any thoughts here?

Thanks!

[abscate]

Tire rack and BMW comments on this

According to the experts at TireRack, the tires on xdrive cars can be different sizes from original equipment (but must be within 3% of original tire diameter), and they need to be within 1% (not to exceed) diameter size of each other to not cause problems.

Those wheels are about 2x that amount