I have a 2008 535i w/ sport package. Recommended winter tire size is 245/40-18. Will 245/50-18 be OK, or is that too much sidewall?

 

Too tall!




It will also affect speedometer accuracy ...

 

Thanks

 

I have another one for you Luigi.

You and I both have '07 530xi's. So you know the correct tire sizing for snows is 225/50/R17. I'm eyeing a good price I'm seeing on Craigslist for a set of Mastercraft snows in 215/50R17. What am I going to experience if I go with a quarter-inch narrower tire?

 

I think that makes the diameter smaller too, if the "50" stays the same.

 

OK, I finally found a set of 245/40-18 winter tires, but the wheels have an offset of 15. Will these be OK, or do I need spacers?

It's a 2008 535i w/ sport package.

 

Your sidewall will change from stock 50% of 225 -> 50% of 215.