BFG KO3 Tires

BIGDOGx · October 27, 2023

As the title states has anyone bought and installed a set of these tires yet? I looked online and they only have two sizes currently, i currently have 275 55 20 and they make them in a 275 65 20. I take it i would need a level lift installed to not have rub if i went with these? Prices though look insane though with them being over 150 more per tire then the ko2's.

Edited October 27, 2023 by BIGDOGx

newdude · October 27, 2023

What are you installing them on? You posted in the 2019-2023 1500 group but it says you drive a 2014 Sierra.

BIGDOGx · October 31, 2023

On 10/27/2023 at 3:32 PM, newdude said:

What are you installing them on? You posted in the 2019-2023 1500 group but it says you drive a 2014 Sierra.

It would be of course on my 2014 which is the same thing as a 2023 size wise i believe. More traffic in these 23 forums is why i posted it in here.

newdude · October 31, 2023

48 minutes ago, BIGDOGx said:

It would be of course on my 2014 which is the same thing as a 2023 size wise i believe. More traffic in these 23 forums is why i posted it in here.

The 19+up 1500s only 3 tire sizes carry over from the last gen. 255/70R17, 265/70R17 and 265/65R18. The 20s are 275/60R20 (33in) and the 22s are 275/50R22 (33in) so not the same sizes as 14-19 for 20" and 22".

So far the AT K03 is an OE spec tire size. LT275/65R20 (34in tire) is on the Silverado and Sierra HD as an optional tire size. AT4 and Z71 Sport I know run them so far, so anyone with a 2024 HD that has those tires would be it for feedback so far.

Edited October 31, 2023 by newdude

BIGDOGx · November 1, 2023

Great thanks for the info Newdude, you know more than every tire shop i have called on info for them lol. I guess that's why some of the prices i have seen for them are insanity, i think tire rack was over 500 per tire.

Firetiger(MN) · November 12, 2023

I just had a set installed on Tuesday and the price difference between the KO3 and KO2 was negligible (~$430/ea) so it wasn't a difficult decision to just go with the KO3's. I went up a size from the OEM 275/60 Goodyear's to 275/65.

MooseHoose · November 15, 2023

On 11/12/2023 at 8:12 AM, Firetiger(MN) said:

I just had a set installed on Tuesday and the price difference between the KO3 and KO2 was negligible (~$430/ea) so it wasn't a difficult decision to just go with the KO3's. I went up a size from the OEM 275/60 Goodyear's to 275/65.

What do you think of those tires so far? I'm looking at those exact tires. Do you have any more pics from different angles?

Firetiger(MN) · November 17, 2023

I don't have many miles on them yet, and nothing off-road or on wet pavement to see how they compare to KO2's. Hope to get on some trails next week but there hasn't been any snow yet either to see how they work in that. I'm looking forward to getting some snow to try them out!

The only thing I noticed right away was that the tire shop put 35psi in them and it made the truck wiggly/squirmy at times on the highway if you laterally crossed over a seam or a crack in the pavement. With the factory tires at 35psi my truck never acted like that so it was very apparent something was off when first driving with these tires. Almost like you had crab steering or one of the wheels was loose. I filled to 45psi when I got home and now the truck tracks normally.

Edited November 17, 2023 by Firetiger(MN)

supersamz71 · June 18, 2025

On 11/16/2023 at 11:03 PM, Firetiger(MN) said:

I don't have many miles on them yet, and nothing off-road or on wet pavement to see how they compare to KO2's. Hope to get on some trails next week but there hasn't been any snow yet either to see how they work in that. I'm looking forward to getting some snow to try them out!

The only thing I noticed right away was that the tire shop put 35psi in them and it made the truck wiggly/squirmy at times on the highway if you laterally crossed over a seam or a crack in the pavement. With the factory tires at 35psi my truck never acted like that so it was very apparent something was off when first driving with these tires. Almost like you had crab steering or one of the wheels was loose. I filled to 45psi when I got home and now the truck tracks normally.

Firetiger, how have you liked the tires? I have the same truck with same wheels. Did you do anything special to shocks/ suspension? Yours looks great. Thanks in advance.

Byrds8 · June 18, 2025

I have these on my 22 ZR2. Love them. They are quiet and sure aren’t as slippery as the GY Wranglers that came on the truck. I purchased them around Sept or Oct of last year.