1.9% difference in tire diameter compared to stock tire's diameter

StingaGT

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is 1.9% of difference really significant?
I'm trying to put 275/30R19 to my aftermarket rim (9.5*19) but the calculator shows it will have 1.9%difference compared to stock tire which is 255/35R19 (for rear)
I used Tire Size Calculator to calculate and it 275/30R19 isn't highlighted in green.
I wonder if this much of difference is significant enough to mess up traction control and abs.
I appreciate your thoughts.
upload_2020-3-13_19-36-11.webp
 
I’m running 245/35/19 up front & 275/30/19 on rears, which maintains almost OE rolling diameter & this was the recommendation from my tyre shop when I got new wheels & tyres.
I’ve had no issues since have them fitted June last year.
 
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I’m running 254/35/19 up front & 275/30/19 on rears, which maintains almost OE rolling diameter & this was the recommendation from my tyre shop when I got new wheels & tyres.
I’ve had no issues since have them fitted June last year.

Sweet! 255/35R19 & 275/30R19 setup is exactly what I had in mind.
thanks for your input
 
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Sweet! 255/35R19 & 275/30R19 setup is exactly what I had in mind.
thanks for your input
So to confuse you, it was a typo on my behalf bu my front should read: 245/35/19.
I’ve edited it
 
So to confuse you, it was a typo on my behalf bu my front should read: 245/35/19.
I’ve edited it

I see. I would recommend getting 255/35R19 next time. It's got less diameter difference compared to stock and you will get a bit more grip.
upload_2020-3-13_20-45-39.webp
 
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That’s good info, thanks.
 
It's all good until you realize that the tire sizes stamped on the sidewall are not an exact measurement of the tire's actual size. Brand to brand, model to model...
 
255 can be really hard to fit on the front. I ended up getting 245-40-18 and 285-35-18 (wanted 18s for my "track" wheels due to cheaper tires, etc). 245-35-19 and 285-30-19 are also VERY close to each in size and should fit. Like 0.5mm different (0.08%).

In general, as long as both front and rear tires are within 1% of EACH OTHER, that's what's needed, even if they are both 5% or more different from stock - some people have gone from 26.1" to almost 27" because they wanted the car a little higher. As long as front and rear are within 1% of each other, shouldn't be a problem.
 
I'm oversized, no issues here with abs or ecs
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
People brag about having 6 packs abs, pfft, I have a full keg.
 
From interior to exterior to high performance - everything you need for your Stinger awaits you...
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