ST tire speed rating L (75mph)

[chaps2018]

Surprised to see my new rig's tires have speed rating L (75mph). I thought GY endurance was the only ST tire that exceeded 65mph.

Constancy ST235/80R16, Speed Rating L, Load Range E

[Old-Biscuit]

Sailun S637 ST is 'L' speed rated also........comes in 16" to 22.5"
'G' to 'H' Ratings

[Bob_C]

Carlisle and Hercules also have high ratings

[xrated]

So do the Maxxis 8008

[ralphie]

In the past year folks have been posting about a few newer ST tires with higher than 65mph ratings. I don't know if it's because mfgrs. are building better ST tires, or they're testing them at higher speeds. I hope it's the former rather than latter. Still, I'm happy to poke along at 65mph which seems like a good speed to haul a 15,000 brick down the road.

[Gordon Dewald]

They are probably in a speed rating race. Somewhat similar to the GCWR and GVWR on pickup trucks.

May have a lot to do with the high speeds many seem to want to tow at.

[FastEagle]

Originally Posted by ralphie

In the past year folks have been posting about a few newer ST tires with higher than 65mph ratings. I don't know if it's because mfgrs. are building better ST tires, or they're testing them at higher speeds. I hope it's the former rather than latter. Still, I'm happy to poke along at 65mph which seems like a good speed to haul a 15,000 brick down the road.

Displaying the speed letters on ST tires is mainly the results of tariffs. About two years ago the USA threatened the off shore tire industry with increased tariffs on all tires entering the USA without a speed recognition symbol on their sidewalls. Some added the approved letter from the existing system and others just molded a notation on the sidewalls. Those not threatened may not yet have a speed restriction showing on their tires sidewalls. Maxxis is one that does not. According to TRA, tires without a speed restriction displayed are only approved for 65 MPH.

[Cumminsfan]

My Carlisle HD's are rated to 81 mph.

[glennwest]

I only run steel carcass LT tires. I also don't exceed 65 mph. I like a heavy commercial tire. Gives me peace of mind.

[Edd505]

Originally Posted by glennwest

I only run steel carcass LT tires. I also don't exceed 65 mph. I like a heavy commercial tire. Gives me peace of mind.

LT's only

[JIMNLIN]

The Provider ST tire were one of the 1st new gen ST tires to hit the streets in '11 era with the new higher L and M speed ratings.
Speed rating for a load carrying tire is more about coping with heat....not just how fast we drive.

Maxxis has been left at the starting gate on their ST8008 tires stuck at 65 mph. That a big marketing ......thing.

[CMelder]

Originally Posted by Edd505

LT's only

I run Michelin LTX 235/85r16 ... a quick run down of LT tires resulted in "Speed Ratings" of Q, R, & S (99-112 mph). Not that I would attempt to run that fast, but it gives you a little more confidence your trailer tire won't shred while running down the highway, and if you do get a tad above 70 mph you're no where near the maximum rating. Michelin with 60k mile/ 6 year warranty.
Run the same tire (different sizes) on my truck and wife's SUV.
Love 'em, extremely good tire.

[1bigmess]

Rainier brand (cheap chinese) ST tires on my trailer, and rated for 75MPH. I never exceed that, and usually run no faster then 65 or the MPG dips down below 10. If I run 55MPH, I get almost 15 MPG, and get less wear and tear on everything else too.

High speed gets you everywhere more quickly: The gas station, the tire dealer, the mechanic, etc.

[Gordon Dewald]

Originally Posted by 1bigmess

.

High speed gets you everywhere more quickly: The gas station, the tire dealer, the mechanic, etc.

Good one!