Largest Functional Tire Without Mods

[LazarusTheGrenny]

The 70’s are 32.8” and the 75 is 33.8. So basically a 33 vs a 34. The factory BFG’s are E rated and weigh-in at 56lbs vs the C rated 70 at 57 and the E rated at 61-63lbs each. I personally would go with the E rated for the 10 ply construction and higher load capacity. I am likely going to go with the 285/70/17 E rated unless I can confirm no rubbing on the 75’s.

Has anyone confirmed fit and no rubbing with the BFG 285/75R17 size and stock steelies (+no lift)?

I’ve seen these on a couple trucks but they had 0 offset wheels. Purportedly no rubbing when loaded & off-road.

 

[bradb622]

Has anyone confirmed fit and no rubbing with the BFG 285/75R17 size and stock steelies (+no lift)?

I’ve seen these on a couple trucks but they had 0 offset wheels. Purportedly no rubbing when loaded & off-road.

I can confirm no rubbing on BFG KO3 (E rated) 285/75/r17 without a lift on stock alloy (don’t have the steelies) on basic mountain off road trails. Also, not the most important thing, but they look great.

 

[LazarusTheGrenny]

I can confirm no rubbing on BFG KO3 (E rated) 285/75/r17 without a lift on stock alloy (don’t have the steelies) on basic mountain off road trails. Also, not the most important thing, but they look great.

Thanks @bradb622! Good to know on the trail performance and looks are an important factor, no doubt.

I believe the 17” alloys are the same offset as the steelies at +55mm. Might be the difference of 17x8” (alloy) vs 17x7.5” (steel). So should approximately come out in the wash on “installed” tire section width placement in the wheel/tire space envelope.

Aside from the rubbing factor: How does it drive? Ride, acceleration/braking, transmission behavior, handling?

 

[Asnes]

Ive got those ko3 tires close in size - 285/70R17.

I’d say they are a little more “squishy” compared to oem size ko2. But not a huge difference in ride, just more, I’d say, compliant.

 

[Manzino]

Has anyone confirmed fit and no rubbing with the BFG 285/75R17 size and stock steelies (+no lift)?

I’ve seen these on a couple trucks but they had 0 offset wheels. Purportedly no rubbing when loaded & off-road.

For comparison these are Goodyear Duratracs 255/80r17 on stock steelies, no lift. Great fit, no rubbing.

 

[mji111]

BFG KO3 285/70/R17 on 17x8 ET 40 wheels. No rubbing and plenty more room to go 295 or maybe larger, but I am happy with this look, performance and it barely fits in the garage with these. No lift.

 

[holdmybeer]

For comparison these are Goodyear Duratracs 255/80r17 on stock steelies, no lift. Great fit, no rubbing.

I love the size. These are also 255/80R17 on stock steelies. Easier steering, less noise, and better wet/snow traction IME. Falken Wildpeak A/T4W.

 

[donnygreygrenadier]

I love the size. These are also 255/80R17 on stock steelies. Easier steering, less noise, and better wet/snow traction IME. Falken Wildpeak A/T4W.
View attachment 7882302

They look great - what did you have before the Falkens?

 

[holdmybeer]

They look great - what did you have before the Falkens?

Stock BFG KO2. Several people smarter than me told me that in the Pacific northwest I will hate KO2s but probably like Falkens for our warm soggy winters here. Ask me in a year if I still love them. Lol. I'm also glad I went narrower and taller for those reasons.

 

[ADVAW8S]

Stock BFG KO2. Several people smarter than me told me that in the Pacific northwest I will hate KO2s but probably like Falkens for our warm soggy winters here. Ask me in a year if I still love them. Lol. I'm also glad I went narrower and taller for those reasons.

I have the AT3W and they have been awesome for PNW for last 5 years.

 

[John Acosta]

> why they gave it a puny tank range still befuddles me

I agree. But here in Germany also filling this puny tank costs already a fortune to fill at $9/gallon: about $177. ?

If anyone really wants a 35” tire I hear that 255/85/17 ‘s will fit without any issues. The width on these is 10” approximately and give you that defender slim look that is seen on a lot of 110’s. Micky Thompson makes these. The actual size is 34.6”. These are also 10 ply, thus, strength should not be an issue.

 

[kbdgr]

If anyone really wants a 35” tire I hear that 255/85/17 ‘s will fit without any issues. The width on these is 10” approximately and give you that defender slim look that is seen on a lot of 110’s. Micky Thompson makes these. The actual size is 34.6”. These are also 10 ply, thus, strength should not be an issue.

Here are the MT 255/85r17 on Owl Sixty wheels w/stock suspension. View attachment g-6.jpg

 

[Dso715]

Here are the MT 255/85r17 on Owl Sixty wheels w/stock suspension. View attachment 7882450

Have you noticed any gearing issues with increased size? Thinking of doing same tires. Appreciate feedback.

 

[Tenac]

Here are the MT 255/85r17 on Owl Sixty wheels w/stock suspension. View attachment 7882450

Curious about the speedo how far off it has become?

 

[anand]

Curious about the speedo how far off it has become?

I would imagine ~1mph slow at 70mph.... with a 255/80/17 I'm almost dead on speedo vs. GPS speed (I show 74-75 via GPS at an indicated 75 on the speedo)

 

[Tenac]

I would imagine ~1mph slow at 70mph.... with a 255/80/17 I'm almost dead on speedo vs. GPS speed (I show 74-75 via GPS at an indicated 75 on the speedo)

oh that is great then, Dumb question number two does the MT 255/85/17 fit on the stock steel wheels and still work or do I need to buy a set of OWL wheels?

 

[Tom109]

Here are the MT 255/85r17 on Owl Sixty wheels w/stock suspension. View attachment 7882450

Fantastic. I really want the 255/85 but not particularly drawn to the Mickey tread pattern. Have you driven them in mud?

 

[anand]

oh that is great then, Dumb question number two does the MT 255/85/17 fit on the stock steel wheels and still work or do I need to buy a set of OWL wheels?

Plenty of folks are running 255/85 on the stock wheels

 

[G-Tank]

33x12.5 R18 with Black Rhino wheels.
No rubbing at all. No lift.

 

[Commodore]

Have you noticed any gearing issues with increased size? Thinking of doing same tires. Appreciate feedback.

I have the 255/85r17 Mickey’s. You will notice a slight difference on gearing but with 8 speeds and abundant torque it isn’t a problem. I have towed 5,000 pound boats up mountains without an issue.