Tire Opinions?!

[RedRyder]

^I don't think so man, check the miata tire calculator. His stock tire size was 205/60/16, and a 2515/50/17 will keep his odo/speedo most accurate. 45's will throw off the speedo around 2.5 mph, and 50's will be around 1/2 mph.

If he is lowered a decent amount I'd say 45's, but if not I'd say 50's or his wheels will look too small in the wells. I had 215/50's on my CL-S wheels (17x7) and the sidewall didn't look huge, but then again they were T1R's. lol

 

[001Stunna]

I think the reason why you guys are coming up with different numbers is due to the fact that Chris is considering that coupe and sedan stock sizes are different.

 

[Sketch o5]

^ word. with the miata calc i compared to a 195/65/15, which is the stock size on the i4's.

either way, i still say 215/45 over a 215/50, regardless of your stock size. its not that much of a difference with either size, but looks wise, a 215/45 will look better and not raise your car.


actually, i lied, i used this calculator...

http://www.rimsntires.com/specs.jsp

and according to it, a 215/45 would fit best with the oem size being 205/60. fits even better than with the oem size being 195/65.​

 

[001Stunna]

Sedan DX 4cyl 195/70-14(stock)
15s-205/60-15
16s-205/55-16
17s-205/45-17
18s-215/40-18

Coupe EX 4Cyl 195/65-15(stock)
Sedan SE 4cyl
Coupe LX 4cyl
Sedan EX 4cyl
Coupe SE 4cyl
Sedan LX 4cyl
16s-205/55-16(0.4% too fast)
17s-205/50-17(0.4% too slow) 215/45-17(would be 1.4% too fast)
18s-215/40-18(0.8% too fast)

Coupe LX v6 205/65-15(stock)
Sedan EX v6
Sedan LX v6
16s-205/60-16(0.8% too slow)
17s-215/50-17(0.1% too fast) 215/45-17(would be 3.4% too fast)
18s-215/45-18(0.5% too slow)

Coupe EX v6 205/60-16(stock)
17s-215/50-17(0.9% too fast) 215/45-17(would be 4.2% too fast)
18s-215/45-18(0.3% too fast)

 

[Sketch o5]

Coupe LX v6 205/65-15(stock)
Sedan EX v6
Sedan LX v6
16s-205/60-16
17s-215/50-17
18s-215/45-18

even on the miata calc a 215/45 still fits better on a 17 than a 215/50. id put money on it that a 215/40 would fit better on an 18 too.​

 

[001Stunna]

even on the miata calc a 215/45 still fits better on a 17 than a 215/50. id put money on it that a 215/40 would fit better on an 18 too.​

It doesn't actually, has more variance then the 215/50 does.

 

[Sketch o5]

It doesn't actually, has more variance then the 215/50 does.

so youre saying with a stock 205/60 tire with a diameter of 24.68, that getting a 215/50 with a diameter of 25.46 would be better than getting a 215/45 with a diameter of 24.61.

so yeah, lets get a bigger tire and increase the amount your speedo and mileage could be off by, that sounds like its right ​

 

[001Stunna]

so youre saying with a stock 205/60 tire with a diameter of 24.68, that getting a 215/50 with a diameter of 25.46 would be better than getting a 215/45 with a diameter of 24.61.

so yeah, lets get a bigger tire and increase the amount your speedo and mileage could be off by, that sounds like its right ​

Your numbers are not exactly right...

Stock tire size is 16" not 15"(which its what you're considering i think) for a Coupe EX v6
16" tire diameter is 25.7"
17" is 25.5" (215/50/17)
17" you're recommending is 24.6"

even if looking at a coupe lx v6 with a 15" stock tire size
stock tire is 15" with a diameter of 25.5"
17s is 25.5" (215/50/17)
17" you're recommending is 24.6"
...so yeah i'd say lets look at the info and data once again

 

[Sketch o5]

haha, yup, im for sure the dunce...was going by 15" for oem size the whole time, haha. oh well.

yes, a 215/50 would fit better with the oem being 205/60/16, haha.​

 

[RedRyder]

lol