Question for you experts
the car will not have raised simply by switching to larger rims....unless an error
was made in the selection of the tire size.
http://www.miata.net/garage/tirecalc.html
enter your stock tire size into the above calculator. then, change the variables
on the output side to 20" so that the circumference is less than 1.5% or so.
is this the tire size you have on there now with your 20 inchers?
generally speaking, the popular lowering springs will lower approx 1.25-1.5"
Last edited by takitoz71; Jul 27, 2008 at 05:29 PM.




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So do you all think i should lower it. since the front wheels are an 1" taller than oem like u said, if i lower it would i have any problems when turnin, meanin rubbin of the tire?
So do you all think i should lower it. since the front wheels are an 1" taller than oem like u said, if i lower it would i have any problems when turnin, meanin rubbin of the tire?
Visually, yes you should lower it.

Will there be problems, I can't say. I am relatively new to the 211 so I am not sure. I know there are others here running the 1" taller tire specs. Maybe they can chime in. I kept mine at OEM diameter specs to avoid issues.
I have another car that I run 20s. On those, I have 1" taller specs and am lowered. For that car, I rand slightly more aggressive offsets so I modified the fenders and wheelwell to minimize rubbing. Still, on big enough dips at high enough speed, I will still rub the top of my wheelwell. I don't also make full turns as the front will rub a little. There is a price but for that car, I was OK with it.






