What we have is a 1989 TA. We are looking at 18" wheels here are the specs. 18x9 5 on 4.75 +14mm offset with a 5 1/2 bs Anyone running this size?? What size tire looks best on the 18" wheel. I did search the site but with all the diffrent combos out there it got me more

Thanks

 

Oh yea would we need to use spacers?? any pics??

 

well i dont know about offest , our cars have no offset from what ive found . But all i know is i have 18x8 on the front with 4.5 backspacing and the rears are 18x9.5 with 5.5 and its great .

 

What tire size?? did you need any mods?

 

275 35 18 on the back 245 40 18 on the front

 

depends on what size tire your trying to match. a factory 91 z28 uses a 245/50/r16 on a facotyr 8" rim. so to match the tire height and dimensions you'd want a 275/35/18 which would be the best tire.

try using a calculator to help you.

http://www.miata.net/garage/tirecalc.html

you'll need adapters. go here.

www.skulte.com

the popular offset for our cars is a 0 mm front and a +16mm rear. this is of course a 10 bolt 4 wheel disc optioned vehicle. those with the 9" rear or drum brakes have a different rear offset.