Show Off Your Cooper STT Pros

I get 18.5-19.5.

 

Thank you for the quick response, that is crazy. I have a 2019 pro with 285/75/R16 STT Pro tires, everything else is stock and I am getting about 13.5mpg average. I do drive probably 90% city driving but 13.5mpg still seems really low. Prior to putting the tires on I was around 19-20mpg. If you have any suggestions please let me know, it shouldn't be my driving, I baby it for the most part just to see if I can get a little better mpg.

 

Buy a daily ha

 

That’s what I get with the same size. It’s normal

 

I wonder the gas mileage a Prius gets if ran on 285/75r16s?

 

Installed today.
SST Pro 255/75-17
No lift. All stock. No issues.

 

@Built2Ride heres a whole thread of STT Pros

 

Second set in 315/70/17. I got 53k out of the first set doing a 5 tire rotation for the first 35k, and then 4 tire rotation after that because I lost one tire to a hunk of metal on the highway. They wore much faster in the 4 tire scenario

 

i run 315-75-16 on mine.

 

Hell yes, getting rid of the 20s and going this route!

 

I just got a set of these a couple days ago in 285/70/17. What psi are you guys running? I have no added weight. I went up to 40psi and as low as 32psi. 32 feels good but I don’t want them to run too low.

On another note, these things are LOUD! I went from KO2s in the same size and I
am very surprised at how loud they are and how you can feel the knobs rumbling over the ground.
This is the most aggressive tire I have ever had on a Tacoma. I’ve had many all terrains over the 25 years I’ve been driving and I’ve never had anything remotely as loud as these things.
I think most of my surprise is because every review I read about these tires said something about how quiet and smooth they are. They are neither.
Oh, and I also lost about 3mpg from KO2 C load to these E load STT Pro’s.

 

Alrighty, UPDATE:

I did a chalk test and used the info here and I’m now down to 30psi.
The tires are MUCH quieter and obviously aren’t anywhere near as firm. I can’t believe that these tires require such low psi on the Tacoma. My mpg also went up by 1, so I’m only down about 2mpg from before with the KO2s.

 

265/70r17 1" leveling kit on TRD Pro 4R wheels

 

Are you on stock suspension or lifted? Do they rub on the 285's?

 

Looks awesome! How do they ride being an E Rated?

 

They’re quite bouncy at highway speeds. Is that normal? I haven’t contacted my tire guy about it yet as I just got them installed but it doesn’t seem right. It’s not THAT bad but I don’t like the bouncing really at all. Sometimes it’s worse than others. Sometimes it doesn’t do it at all. And the highway I drive on is a brand new paved highway as you can see from the pics

 

Check your tire pressure (chalk test). I run anywhere from 28-34 lbs., depending on the temperature and barometric pressure.

 

I've never had these in a E rated so I can't really say for sure. Maybe check the air pressure and lower it if needed. I've only ran these STT's in a C load on a first gen and they were a little still but overall pretty nice riding. I currently have AT3 XLT's E rated on my 2nd gen and they are pretty smooth.

 

Yeah, that's the first thing I did. I checked the tire pressure and it was 39psi so I dropped it down to 29. The bouncing stopped a little but it still bounces. I'll check with my tire guy tomorrow and see what he says.

@Beef Nachos, what's a chalk test? Never heard of it.