Okay, I need someone who knows from personal exp.

I got new rims for my teg, they are 15x6.5, the stock rims are 15x6...

I need to pick tires for the new rims that will be close to even so the spedometer doesn't need to be re-calibrated...

Stock: 195/55 @ 15x6
New: ???/50 @ 15x6.5

I'll be getting azenis, so should i get 215, or 205?

PLEASE HELP!!!

 

The 215/50 will match the sidewall height closer to the stock sidewall height.

195/55=107.25mm
215/50=107.5mm

 

I know - but thats only if if it's on the same size rim...

This is a problem cuz i'm going from a 6inch to a 6.5 inch wide rim...

Thanx for the response tho

 

It's not the width... You want to match (close) the overall diameter of the tread. TireRack.com has that listed for most of their tires. I wanna say something like 205/45-16 or 205/50-16 but I'm not sure which.

Doh! I thought you were asking about 16" rims...



Modified by JimBlake at 5:27 PM 11/13/2003

 

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

The width of the wheel will affect the overall diameter, but not enough to really worry about
215/50/15 matches the diameter perfectly
Stan

 

205/50R15 is what you want. A 205 is a closer fit on a 6.5" wide rim that on a 6" wide rim, so that is as close as you are going to get.

stock diameter is 23.4" and a 205 is 23.1".

Check the diameters on this page:
http://www.kumhousa.com/Produc...D=712

or better yet, for the particular tire you intend on buying.

Cheers,
Roy

 

90crxsi - yes i know that site, and thanx, but like i said, it's a different width, and it does make a difference, thank you all the same...

rapid_roy - Thank you, that helped me a lot!