My 37" tire experience

[IdahoKTM]

What are those tires speed rated for?

100 MPH. I like Ridge Grapplers and his truck looks great, but they are 27 lbs heavier than the Goodyear Territory AT's.

 

[dave summer]

Eibach front springs, 37x13.5 ridge grapplers on stock beadlocks.

Perfection! Drives same as stock if not even better. Zero rubbing. Epic fitment

View attachment 113143

Beautiful truck, clean and straight yet looks tough as nails

 

[silvesterj81]

Eibach front springs, 37x13.5 ridge grapplers on stock beadlocks.

Perfection! Drives same as stock if not even better. Zero rubbing. Epic fitment

View attachment 113143

Looks great

 

[silvesterj81]

100 MPH. I like Ridge Grapplers and his truck looks great, but they are 27 lbs heavier than the Goodyear Territory AT's.

Bead locks are about 40 pounds plus a 90lb tire

130lb setup

smaller BFG k02 37.13x5/18 78lbs
Black Rhino rapids 18x8.5 25lbs

103 lb setup

Just like OP going with a lighter setup

 

[zer0_killr]

Anyone have any preference or thoughts on whether to go with a 12.5 vs 13.5 tire? I’m about to pull trigger on 37s and this thread seems to indicate there’s a mix. Just not sure the difference or preference.

 

[Dudebro]

Anyone have any preference or thoughts on whether to go with a 12.5 vs 13.5 tire? I’m about to pull trigger on 37s and this thread seems to indicate there’s a mix. Just not sure the difference or preference.

13.5 for looks 12.5 for off-road performance

 

[Trunty]

Anyone have any preference or thoughts on whether to go with a 12.5 vs 13.5 tire? I’m about to pull trigger on 37s and this thread seems to indicate there’s a mix. Just not sure the difference or preference.

I personally see no reason to go to 13.5. In my experience they will wander more on the highway and create more fitment challenges.

 

[G5892]

I think 12.5 is less likely to cause any rubbing/fender contact when stuffing those wheels. I could be wrong. Either way, I have no issues with my 12.5 setup.

Also not sure if there’s any fitment differences fitting a 13.5 in the spare spot vs a 12.5. 12.5 is super close.

 

[FULLTHROTTLERICK]

Bead locks are about 40 pounds plus a 90lb tire

130lb setup

smaller BFG k02 37.13x5/18 78lbs
Black Rhino rapids 18x8.5 25lbs

103 lb setup

Just like OP going with a lighter setup

Stock non-bead + 37” Maxxis Razr MT = 107-108lbs

 

[zer0_killr]

13.5 for looks 12.5 for off-road performance

Interesting. Had always thought the extra width of a 13.5 would be better for off-roading. Is that not the case here, although it isn’t much of a difference admittedly?

 

[JBTRXNJ]

Interesting. Had always thought the extra width of a 13.5 would be better for off-roading. Is that not the case here, although it isn’t much of a difference admittedly?

13.5 is worse in wet/snow

Really depends on what your definition of off-roading is. Are you rock crawling, driving on mud or sand?

There really is not a one size/tread design fits all. You need to be honest with yourself on what your primary use scenario looks like, and choose the tread profile, tire height, and width that best fits what you are using it for.

 

[zer0_killr]

13.5 is worse in wet/snow

Really depends on what your definition of off-roading is. Are you rock crawling, driving on mud or sand?

There really is not a one size/tread design fits all. You need to be honest with yourself on what your primary use scenario looks like, and choose the tread profile, tire height, and width that best fits what you are using it for.

Thanks! That’s totally fair and reasonable. We’re a bit of everything, but not really rock crawling. Snow, sand, and mud for sure. However, I like the asthetics of a wider tire.

 

[JBTRXNJ]

Thanks! That’s totally fair and reasonable. We’re a bit of everything, but not really rock crawling. Snow, sand, and mud for sure. However, I like the asthetics of a wider tire.

What wheels are you using?

 

[zer0_killr]

What wheels are you using?

Stock bead lock

 

[JBTRXNJ]

Stock bead lock

Then you can use 37x either 12.5 or 13.5

 

[zer0_killr]

Then you can use 37x either 12.5 or 13.5

Thanks. We do snow, mud and def sand dunes. I liked the additional width of the 13.5, but sounds like 12.5s are better for that.

 

[FULLTHROTTLERICK]

Personally, i think the 13.5 looks a bit better. The 12.5s are tucked in a bit too much for my taste. I'll prolly switch to 13.5s when I burn these 12.5" rubbers off. I think the 13.5" wide might help with traction too for those pushing an extra 100+ ponies.

On the other hand, it's really hard to beat the weight of my 12.5s. I'm running 37" Maxxis Razr MTs on stock non-beadlocks so I'm only like 2-3 lbs heavier than stock 35s with stock beadlocks. Really nice not to have a ton of extra weight there (harder to go/stop/etc).

I raced my bud with a Sandblast a few weeks ago. Both of us have S&B and Predator. He has 38" x13.5" toyo open country MTs on stock beadlocks. He's got an extra 32lbs at each corner. I had 1.5 other people in my car and he was alone. I also had about 400lbs more stuff in my truck. After running from 0-94mph, I had about 3 full truck lengths on him at the end... gotta think the extra rolling mass played a huge part in that lol especially since I had about 650lbs more weight in my truck.

 

[Johnny@JustBoltOns]

So who's running 20x9 ET00 Wheels on 37x13.5 Tires?

 

[Spicoli]

Personally, i think the 13.5 looks a bit better. The 12.5s are tucked in a bit too much for my taste. I'll prolly switch to 13.5s when I burn these 12.5" rubbers off. I think the 13.5" wide might help with traction too for those pushing an extra 100+ ponies.

On the other hand, it's really hard to beat the weight of my 12.5s. I'm running 37" Maxxis Razr MTs on stock non-beadlocks so I'm only like 2-3 lbs heavier than stock 35s with stock beadlocks. Really nice not to have a ton of extra weight there (harder to go/stop/etc).

I raced my bud with a Sandblast a few weeks ago. Both of us have S&B and Predator. He has 38" x13.5" toyo open country MTs on stock beadlocks. He's got an extra 32lbs at each corner. I had 1.5 other people in my car and he was alone. I also had about 400lbs more stuff in my truck. After running from 0-94mph, I had about 3 full truck lengths on him at the end... gotta think the extra rolling mass played a huge part in that lol especially since I had about 650lbs more weight in my truck.

That’s a significant difference. How much louder are those Razr MT tires louder than stock? Figuring out which 37” tire I want to go with.

I had 35 MTs on my Denali and it was definitely a noticeable hum 20+ MPH. I switched to Toyos and a bit better.

 

[FULLTHROTTLERICK]

That’s a significant difference. How much louder are those Razr MT tires louder than stock? Figuring out which 37” tire I want to go with.

I had 35 MTs on my Denali and it was definitely a noticeable hum 20+ MPH. I switched to Toyos and a bit better.

They're def louder than OEM but wayyy quieter than my old 35" Nitto Mud Grapplers. I was pleasantly surprised how quiet they were for an MT.