Tire options

TexasTonka · Sep 9, 2020

Here comes some first world problems.... I’d like to run 37’s or 38’s on a TRX but unfortunately speed ratings on truck and off-road tires are usually limited to 99mph. This truck goes 118 stock and with a pulley and tune you may get in the +120’s.
I know they developed a special tire for the truck to be ‘off-road’ and speed rated correctly.
anyone have tire manufacturing contacts to see if larger replacements are in the works?

Brad1331 · Sep 9, 2020

The only Thing I would suggest is if you are truly planning on taking it baja style racing where you hit speeds in excess of 100 mph off road then invest in a set of NON DOT Legal Baja Racing tires and wheels you can swap on when you want to go race, you can get them in all sizes up to around 45-48 inches and they are speed rated in the 149+ mph range and use whatever tires you like the best for looks when you are not racing

If however you just prefer the look of the larger tires and want the speed rating for open sections of highway and don't want to hassle with non DOT Legal tires (you likely wouldn't get hassled by the police but if you were involved in an accident with non street legal tires you could find yourself in a world of trouble) there is not a single LT tire that I could find for sale and I had my neighbor who owns a tire and lube shop look into it as well with a 149 speed rating larger than 34.8" which is only 0.2" larger than stock. And even then there is only 1 it is a yokohama parada spec-x in 325/50/R22 which is the set of tires I am putting on my TRX as soon as I get it as it should fit the stock suspension without any modifications and I am going to slightly mod and tune the truck to performance levels near stock hellcat and trackhawks of 0-60 in around 3 seconds and a 1/4 time in the low 11s and have no intention of racing it off road but if I do the stock whells and tires I am going to keep with a 118 mph rating should be plenty good enough for the job.

The reason for the lower speed rating on LT tires is because they are tested at the top speed under max load and not too many people are interested in a huge truck tire that can carry a max truck load of 1500 plus lbs while going over 100 mph....That being said they cannot rate the tires at what their actual speed rating would be under normal daily driving circumstances of a truck with only a driver and maybe 1 or 2 passengers at or below a 400 lb load but as long as you are buying a reputable tire from a big name brand most LT tires while not under load are more than safe if occasionally topping 120+mph on open freeways

But if anyone finds a LT tire with +/- 1% or less difference from OEM TRX tires of 34.6" that has a higher than 149 mph speed rating keep me posted as I will likely choose that option instead. I've got time seeing as how its going to likely be December before my truck comes in and living in the midwest I wouldn't attempt speeds over about 95 mph until at least march or April when the temps go up a little and the snow and ice all clears.

KnightMare · Sep 9, 2020

I'd be interested in seeing your setup. I was looking for a higher speed tire as well and figured would have to go to a low profile tire.

Brad1331 · Sep 10, 2020

Something like this is what I have in mind, the tire is almost identical in every dimension to stock and is a 149 mph speed rated LT tire with a simple blacked out wheel to keep with the theme of the silver and black truck

TexasTonka · Sep 10, 2020

Brad1331 said:
Something like this is what I have in mind, the tire is almost identical in every dimension to stock and is a 149 mph speed rated LT tire with a simple blacked out wheel to keep with the theme of the silver and black truck

I ran those on my SRT10 Ram and they did well. IMO the truck may look out of place running 22” wheels.
I appreciate the research help. my issue is here in Texas with speed limits of 85 (so most go 90-95) If I’m passing someone I usuallyjump up in the triple digits for extended periods of time, same thing driving between San Antonio and El Paso. If you didn’t do 110 it would take forever.
combine a 99mph speed rating with 100* heat and blistering sun= recipe for disaster.
I’d be happy with an H Speed rated tire in a 37x13.50R18 even in an all terrain pattern. I know the limitations of that tread design building heat is the main issue but hope these special compound TRX OEM tires start opening up the market.

Brad1331 · Sep 10, 2020

TexasTonka said:
I ran those on my SRT10 Ram and they did well. IMO the truck may look out of place running 22” wheels.
I appreciate the research help. my issue is here in Texas with speed limits of 85 (so most go 90-95) If I’m passing someone I usuallyjump up in the triple digits for extended periods of time, same thing driving between San Antonio and El Paso. If you didn’t do 110 it would take forever.
combine a 99mph speed rating with 100* heat and blistering sun= recipe for disaster.
I’d be happy with an H Speed rated tire in a 37x13.50R18 even in an all terrain pattern. I know the limitations of that tread design building heat is the main issue but hope these special compound TRX OEM tires start opening up the market.

I agree the truck looks much better on 17s or 18s but at some point you have to accept function over fashion....I will hope with you that tire companies come out with something besides the OEM but i doubt you are going to get any options on 18s that are a bigger OD than the stock 34.6 with a speed rating over an S of 112 but that might just be the pessimist in me

Duke858 · Sep 21, 2021

Brad1331 said:
I agree the truck looks much better on 17s or 18s but at some point you have to accept function over fashion....I will hope with you that tire companies come out with something besides the OEM but i doubt you are going to get any options on 18s that are a bigger OD than the stock 34.6 with a speed rating over an S of 112 but that might just be the pessimist in me

You find anything w/ higher speed rating? I'm looking now.

CustomPerformance · Sep 30, 2021

Pirelli makes the Scorpion ATR in 325/55r22. It's the stock tire on a G Squared, so that got me thinking about it's speed rating. It is rated at H, which is 130mph. Not a huge increase in speed over 118, but it's still higher at least. Trouble would be finding a 22"x9" with the correct offset to be able to run those tires without any rubbing...

Duke858 · Sep 30, 2021

CustomPerformance said:
Pirelli makes the Scorpion ATR in 325/55r22. It's the stock tire on a G Squared, so that got me thinking about it's speed rating. It is rated at H, which is 130mph. Not a huge increase in speed over 118, but it's still higher at least. Trouble would be finding a 22"x9" with the correct offset to be able to run those tires without any rubbing...

Nice call, but $700 a tire wow. The more I search the more I think I’ll stick w/ stock setup.

CustomPerformance · Sep 30, 2021

Duke858 said:
Nice call, but $700 a tire wow. The more I search the more I think I’ll stick w/ stock setup.

Yeah they aren’t cheap. I call that the G Wagon tax. They were developed for that particular truck so I guess Pirelli figures they can charge a premium.

MAXGroup · Sep 30, 2021

CustomPerformance said:
Pirelli makes the Scorpion ATR in 325/55r22. It's the stock tire on a G Squared, so that got me thinking about it's speed rating. It is rated at H, which is 130mph. Not a huge increase in speed over 118, but it's still higher at least. Trouble would be finding a 22"x9" with the correct offset to be able to run those tires without any rubbing...

Both Ram and the Jeep Grand Wagoneer have 22x9 rims that should work for the TRX, for Ram 5YD62TRMAB is one part number. Nothing on ebay yet but I bet when the GW hits the streets in a couple of weeks you can find them on ebay, heck I may be selling mine to go down to a 20".....

Duke858 · Dec 16, 2021

CustomPerformance said:
Yeah they aren’t cheap. I call that the G Wagon tax. They were developed for that particular truck so I guess Pirelli figures they can charge a premium.

You find anything else? Looking for highest speed rated 35x12.5x22 tires. Wish the online dealers let you sort or filter by speed rating.

CustomPerformance · Dec 16, 2021

Duke858 said:
You find anything else? Looking for highest speed rated 35x12.5x22 tires. Wish the online dealers let you sort or filter by speed rating.

I actually hadn't looked any further. Next I'd maybe look at the BFG KR3 series. Not sure what they are rated for, but if Trophy trucks can run 130+MPH on them for extended times that might be an option. I don't recall if those are actually street legal though. And I think the TT size is 40x12.50r18, so you are going to need some aftermarket fenders and bedsides to run them.

The only other tire I can think of would be the one they made for the Lamborghini LM002, but I think that was for a 15" or 16" wheel and the price to get them made is insane...

RobsTRX · Dec 16, 2021

I see that tire for $175
Am i missing something?

Pirelli Scorpion ATR (MO) 325/55R22 116H 2015 AT A/T All Terrain Tire

www.prioritytire.com

CustomPerformance · Dec 16, 2021

RobsTRX said:
I see that tire for $175
Am i missing something?

Pirelli Scorpion ATR (MO) 325/55R22 116H 2015 AT A/T All Terrain Tire

Pirelli Scorpion ATR (MO) 325/55R22 116H 2015 AT A/T All Terrain Tire

www.prioritytire.com

That's a recent development in terms of pricing. Last I looked they were WAY more expensive. Looks like Amazon has them too for around $240. Just speculation, but it's possible Pirelli produced a bunch of these for the G Squared, and were left with extra sets. Given the dates of productoin of the G Squared ('17-'18) it's possible the left over tires are nearing 4-5 years old and they are trying to dump them. This is purely speculation on my part, but that's about the only reason I can see them being so cheap. Most 37" tires for 20" or 22" wheels are $400-$500 per tire regardless of manufacturer (Toyo, Nitto, BFG, etc.). Very strange that these would be under $200 per tire. Particularly since Pirelli isn't usually known for being inexpensive.

Edit:

I went back and looked at the ad you posted and found the production date as 2015...