Cooper stt pros

harryron Dec 19, 2016

  1. harryron

    harryron Titan Swapped / SAS'd Supporting Member

    Messages:
    5,349
    Location:
    ohio
    This is going to be an ongoing review of them. I have searched the Internet and have not found a lot of info on them that was unbiased.
    [​IMG]

    I bought these tires in 32x11.5x15 according to the Cooper website the actual diameter of these tires are 31.57 with a tread depth of 20/32 and a load range of C.

    These are the first set of mud tires I have ever owned. I currently have about 150 miles on them. My initial thoughts on the tires are they are a awsome looking tire they have a aggressive tread design and deep lugs. After my limited amount of driving I have done on them they are quite not much louder than the all terrain tires I had on my xterra previously. So far I have had them on some ice and in my opinion they done good going up a ice covered hill in 2x4 where normally I would have had to use four wheel drive. I do think that the sidewalls are stiff and will be doing a chalk test and adjusting the pressures to see if this will help. Later this week I will be hitting some of the dirt roads after they melt some to see how they do.

    [​IMG]



    sent from the middle of a corn field.
     
  2. Prime

    Prime Some Kind of In Charge? Admin

    Messages:
    34,365
    Location:
    Denver-ish
    These are the exact same tires I'm getting. Except in metric 35s. I wish I could get a C range tire, hell a D range tire would be nice. But alas, all of the large metric tires are E. Spare will be here this week, probably ordering the other 4 after the 1st of the year.

    My business partner has them in 37/12.50/17 on his JK. And it's a good looking tire.
     
  3. SRStaff

    SRStaff Bought an X

    Messages:
    142
    Location:
    Central Alabama
    I agree that there is not much info on these besides initial reviews. The initial reviews sound great on the tires. My concerns on them are the performance of the tire as they wear to the point that they "open" the scoops and dimples in the outside lugs making them ineffective. It may of may not affect performance. This will be nice getting real user review to that point.
     
  4. Jbat

    Jbat First Fill-Up (of many)

    Messages:
    274
    Location:
    Utah
    This is what I'm running on mine in a 37" on 18" wheels. Absolutely love them. Have had them since GoneMoab last May
     
    Last edited: Dec 26, 2016
  5. harryron

    harryron Titan Swapped / SAS'd Supporting Member

    Messages:
    5,349
    Location:
    ohio
    I hit about 5-6 miles hard packed dirt roads with some loose gravel today. I was running about 35-40 miles per hour and these tires feelt very sure footed I did not experience and spinning or sliding. The gravel we not big enough for the tires to hold. There was some random spots where there was some deeper mud and had to hit them and the tires did well in 2 wheel drive.
    [​IMG]
    [​IMG]

    sent from the middle of a corn field.
     
  6. emtmark

    emtmark Wheeling

    Messages:
    418
    Location:
    San Fransisco Bay aRea
    I'm following this thread for the reports thank you


    Sent from my iPhone using Tapatalk
     
  7. harryron

    harryron Titan Swapped / SAS'd Supporting Member

    Messages:
    5,349
    Location:
    ohio
    Little update, we received around a inch of snow today and the stt pro's worked great. In the snow they had plenty of traction only slid about 2 feet one time when trying to stop at the bottom of a hill. Now on my way to work tonight I ran into slush (thanks to the road crews in Mansfield not knowing how to lower their plows). This is where it became a little dicey while moving the tires felt fine no sliding or hydroplaning but I had to try to stop quickly and ended up sliding through a stop light. When excellerating from on light on a incline I did experience a little bit of tire spinning.

    I am hoping to receive some deeper snow this winter so I can see how they preform in these conditions. On another note the tires preform good on wet roads but that is to be expected. As the tires have started to ware some they have become a little louder I really can not hear them much with my windows rolled up tho.

    I am hoping to get these tires on some trails soon but there are a few things that I need to address first.



    sent from the middle of a corn field.
     
  8. harryron

    harryron Titan Swapped / SAS'd Supporting Member

    Messages:
    5,349
    Location:
    ohio
    I hit the thousand mile mark today on my way home from work today. I stoped at my local auto parts store and bought a tread depth gage made by slime. These tires are hard to get an accurate reading with the gage on the outer two trade blocks because of radius that butt up to each other so I took my reading from the center two blocks. It measures at 20/32.
    I will get a better picture later today when it is not raining.
    [​IMG]

    My impressions so far are good. These tires have handled above my expectations in most conditions except when the roads are slushy. Like I said earlier, the sidewalls are stiff and it makes for a bumpy ride in rough conditions. They seem to be wearing good I checked all my tires in the same location and they measured the same. I am still waiting for a snow that equates to more than a 1/2 inch to see how they preform.

    sent from the middle of a corn field.
     
  9. JeffPro4x

    JeffPro4x Hot Pipe Moderator Supporting Member

    Messages:
    8,604
    Location:
    Glenside, PA
    Following.

    sent from a crawlspace...
     

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