Tire options

TexasTonka

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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

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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

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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

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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
 

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TexasTonka

TexasTonka

TRX Member
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Texas
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2018 AEV ProspectorXL
Current Ride #2
2018 Demon
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

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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
 
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