deuce

Probably been beaten like a dead horse, but...

What is the difference between our stock tire size (215/40/18 i believe) and what ive been looking everyone has now... (225/45/18) is this a wider tire? or what about 225/40? will these sizes fit the stock SS/SC wheels? im a newb and only know truck sizes...

Also, i am wanting a fairly inexpensive tire but i want to have good wear and grip... ive been looking at

BFGoodrich g-Force T/A KDW 2 (174.00 per tire)

Falken Ziex ZE-912 (113.00 per tire)

Kumho Ecsta SPT (100.00 per tire)

Yokohama S.drive (154.00 per tire)

SUKXOST

yes...225 is wider. The 40 represents a % of how tall the tire is compared to how wide it is.

EceSSiveMod

the 225 is wider.....i have 225/40's on my car and its completely fine, drives great i like it better thank stock personaly, correct me if im wrong but im pretty sure the ecsta has the highest treadwear rating

flobeelicious

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

this will show you the difference in sizes, and associated speedo errors, etc.

tire rack should offer an optional size for ss/sc - pretty sure its the 225/40. thats what i'm running on my car now, and have for the last two.

as far as the choices listed, i had the spts, lasted about 30k. wear got pretty uneven across the tires at the end, but they had decent grip, in dry or wet, as long as it was warm. damn scary the one time i tried them in the snow, though.

have the kdw2s now. if anything, they squeal a bit quicker than the kumhos, but seem to grip slightly better. definitely noisier than the kumhos. like the looks, but not sure that they're worth the extra money for the difference. when i need my next set at about 115k, i'm going to go back to the cheaper kumhos.

deuce

bump keep em comin



so 225/40/18 is what to go with?

SUKXOST

yeah....that's likey the size that 90% of people will get on thier Cobalts

EXsoccer1921

iTrader: (14)

i have kuhmo ecsta SPT's, 215/45/18. and apparently they're oh so amazing according to people on here, cause i ran a 14.22 with them

Bumpin Balt

I've heard the Kumho's wear out extremely fast despite their high tread rating. For the money, Nexen N3000's are hard to beat if you want performance on a budget. If you want to support American companies, go with BFG g-force sport, kdw 2's, or General Exclaim UHP's.

EthensCobalt

i have 245/40 on my t/c

SUKXOST

Are you lowered? If so how far did you drop. I'm asking bc I've heard that a couple guys with 235's were running at times and you have 245's ????

deuce

should i get 225/40/18s or 225/45/18?

i have a stock suspension balt

SUKXOST

45 is a taller tire and will ride a little softer. up to you

deuce

just bought 225/45/18's KDW2s

shawn

how do you like them, those were the tires i was thinking of getting for my cobalt