hello. i'm buying 18" rims and i need to know what tire size i should get to keep my speedometer and odometer accurate.

or maybe i should go down to 17" rims??

help me out please im a hard core newb!!

 

https://www.scionlife.com/forums/viewtopic.php?t=348

 

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

also check this^

 

Discounttire.com has a tire size calculator too....also the sizes they recommend are 205/40/18 and 215/35/18...the latter throws the speedo off a few MPH.

 

the factory 18" TRD rims come with 215/35/18 rubber. I would stick with that size.

 

will that size work with the tenzo R GF-7?

 

if its a 18" rim it will

 

What about 225/35/18 on 18x7 rims? Wheelsnext assures me they will fit, but... Didn't have my 17" 205/40/17 in stock in this style (Kobe viz-5 gloss black). Will these fit ON A 2006 XA?

 

On a stock suspension u might be pushing it.

 

I have totally stock suspension, uh oh. What problems might I see? They said with the 35 profile I should be safe. Yikes. Now I'm worried. What's the largest you heard of working on an xA? Wish they had the 17"s I originally wanted... bummer.

 

Just called them and they agreed... sending me 215/35/18's. Whew. These Kobe Viz-5 Black Gloss rims are crazy cool... double chrome lip.... oooooooh. Set of 18"s mounted/balanced/shipped for $800. My xA shall be the envy of you all!!!!

 

Congrats....You got a good price...I am waiting for my wheels too...lol. Koya Racing RS-GTs W/215/35/18 ($820.00-delivered) Post them pics when you get them.

 

Rims arrived yesterday at 2 pm... were on the car and rolling by 3. 215/35/18 not only fits , it looks amazing. Anyone wanna guesstimate how much of a drop I could do without having issues? 1 1/2 - 2"? Looks great but another inch or so lower and it'd just be sick.

ps www.wheelsnext.com - Highly recommended
Kobe Black gloss Viz-5 18" rims w/ 215/35/18 tires = $800 TOTAL!!

(pics soon if my friend gets over with a camera)

 

dont even worry about the speedo being off, you can take it to the mechanic and have it calibrated for like $30...if that.

 

Speedo is barely off with 215/35/18... when speedo says 60 you are actually going 59.5. Big whoop. More worried about rubbing issues with drop. My mechanic friend said he could "cut the springs" to do it and also said something about clamping the spring to take a couple links out...??? Sounds scary to me. Anyone wanna chime in?