5Zigen FN01R-C what tire size?

turbo_911 · May 15, 2009

5Zigen FN01R-C 18x7.5 +43 offset

do you guys think 225/40/18 tires would fit nicely those rims or not really?
or should i go with 215/40/18? or should i go with 215/35/18

nexTOme · May 15, 2009

assuming you are putting this on 6thgen, 225/40 18 will give the most accurate speedo reading

please search and things like this is pretty self-explanatory. just calculate the overall diameter of rim + tire and compare them to stock.
most tricky part would be converting inches to mm or vice versa. how hard could that be?

unless you were trying to stretch tire because you're rubbing/too low or smoething....

hope this helps

BlkCurrantKord · May 15, 2009

Ugh...where's the tire calculator...

Oh look..its there at the top of the forum...

How bout dat?

turbo_911 · May 15, 2009

haha lol i used that tire calculator... don't worry
its just i asked which ones would go better....

also what does 7.5 means? cuz i've seen some rims that are 18x9.5
will they fit our 6th gens?

BlkCurrantKord · May 15, 2009

It's 7.5inches wide...

:facepalm:

bdeitemeyer · May 15, 2009

7.5 is the width of the wheel in inches. 225/40/18s will be fine.

I don't think you want to deal with anything wider than an 8.5, even though it's possible it's just not recommended for the ignorant.