Well i recently nabbed a good deal on some used spec miata tires to throw on my extra set of rims. They are 205 50 15. Now talkimg with a buddy of mine he has me concerned with it changing my final gear ratio. And i might be needing to shift a bit more. My questionis has anyone ever used that short of a tire height? If so how did you feel about it. I guess its a little to late to do anything about since i already bought them but just looking for input

It will shorten the ratios which isn't really a bad thing unless you are on a long fast autox course.