[Blazer420]

I have a 2020 blazer redline
3LT AWD
I need some information on wider tires for this badass SUV. I am wanting to put wider tires but need more information is it possible? Will it throw off anything? Has anyones done this already? I need answers any answers is welcome.

 

[2020 3.6 FWD 2LT]

Typical for most tires is to go what used to be known as a +1 or +2 on the factory tire size. As an example, 245/65 R18 can go to a 255/60 , or even further with a 265/55 size. There’s almost an inch in width difference between the 245, 255, and then 265 width. The 265 is nearly two inches wider than 245. One needs to go to a lower sidewalk profile to keep the overall tire diameter the same. The shorter sidewall is more responsive, noisier, and is not as good as absorbing rough road surfaces.
Given that there are 18,20 and 21 inch stock rims for the blazers, that approach works in all rim diameter sizes.
A good start is a +1 from whatever was stock for that rim size for better looks, slightly improved handling, and doesn’t affect tire geometry within the stock wheel well.
I’m going for a 255/60R18 when the factory continental sports need replacing.

 

[Tip Of The Spear]

I have a 2020 blazer redline
3LT AWD
I need some information on wider tires for this badass SUV. I am wanting to put wider tires but need more information is it possible? Will it throw off anything? Has anyones done this already? I need answers any answers is welcome.

Just drive to a Discount Tire, or a tire shop of your choice, and try on some different sizes to confirm you don't rub. I wouldn't purchase any tire without trying them on first. I will replace mine once they wear out with a wider profile. I have three brands in mind and will try on all three brands before a purchase is made.

 

[fireball615]

Another option for a wider stance is wheel spacers. Here the 1.5 inch ones with the 18 inch wheels. Also use them with the 20's in the warm weather.

 

[Tip Of The Spear]

Another option for a wider stance is wheel spacers. Here the 1.5 inch ones with the 18 inch wheels. Also use them with the 20's in the warm weather. View attachment 2000
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I'm personally not really keen on that look. I know another guy that has a Youtube vid on the installation of those on his rig. It doesn't actually widen the footprint of the tire itself, rather pushes the tire out of the wheel well, keeping the same footprint of the tire. I can visualize a wider footprint on the tires themselves without the use of spacers in your pics, leaving a nice husky footprint. Just have to be sure they don't rub. That's why I'll need to try on my 3 choices first before purchasing. I'll purchase a tire that is a tad wider than the 21" Continentals I have and probably a lower profile. I almost did those spacers, but at the end of the day, I knew it wouldn't satisfy the look I'm going for.

 

[wes.carper43]

I can tell you for sure that 255x55x20 rubs slightly. If going 255 maybe do 50 series. 265x45 might actually work and I believe there's thread with someone that tried it a few months ago but never reported results back.