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Old 01-20-2016, 07:45 AM   #1 (permalink)
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Cooper STT Pro any good?

Haven't been able to find much on these. Looking at 37x13.5r17. My dad bought an LJ and wants to get rid of the Mud Grapplers in favor of something more dual purpose. So what's the good the bad the ugly?
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Old 01-20-2016, 08:01 AM   #2 (permalink)
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Interesting, I had not even seen/heard of these....
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Old 01-20-2016, 08:17 AM   #3 (permalink)
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I have them in the 31 10.50 flavor on my weekend wheeler zuk. So far I love them. Flex real well, fairly soft compound sticks the rocks well. They dig in the deep snow as well. Sidewalls are real stout. all 5 balanced out very well, seem to be true round tires. Smooth on highway and track very well. Not very loud at highway speeds. Bout all I have on them so far.

I wouldn't hesitate to pick up a set of 37's for my buggy. I currently run bfg reds on it for most all wheeling, but have a set of the cooper stt's (older style) on a set of rims for snow and other times the reds aren't needed. I really wish I had the money to replace the older stt's with the new pro's. I feel they are that much better.
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Old 01-20-2016, 08:22 AM   #4 (permalink)
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I'd recommend them to anyone looking.
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Old 01-20-2016, 10:39 AM   #5 (permalink)
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Is that size available? We checked a month ago for some 35R17s but the size wasn't available yet. I want to run a set on my tow pig once the toyo MTs wear out.
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Old 01-20-2016, 10:45 AM   #6 (permalink)
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Is that size available? We checked a month ago for some 35R17s but the size wasn't available yet. I want to run a set on my tow pig once the toyo MTs wear out.
They make 315-70-17 in an E rated, that is a 35 inch tire. I doubt they would waste time making a flotation size 35x12.50-17 also
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Old 01-20-2016, 11:27 AM   #7 (permalink)
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how do these compare against the stt max? currently running those on on my f350 in a 37x12.5x17
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Old 01-20-2016, 03:42 PM   #8 (permalink)
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I have been happy with my 35-12.5-15s so far. The tread pattern is open between the large lugs enough to keep them from slicking out in the mud. They are loud on the hwy though, but no where near what the old 35-10.5-15 boggers were. They are doing DD duty on my now wheeling retired Toyota.
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Old 01-20-2016, 08:59 PM   #9 (permalink)
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Well pops purchased a set. Were going to get them mounted up this weekend and hopefully hit Bridgeport OHV park in a couple weekends. Anyone interested in possible pictures or feed back?
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Old 01-20-2016, 09:02 PM   #10 (permalink)
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yes to both. the old stt was awesome. im leery of how good the new one will be.
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Old 01-21-2016, 12:51 AM   #11 (permalink)
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a friend has a set of the 37s on his jk and he loves them. he drives to and from the trails year round and they perform awesome in all environments. I would highly recommend them for a rig that see's both the pavement and trail. this was after a day of snow wheeling at 3-4 lbs of air
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Old 06-02-2016, 05:30 AM   #12 (permalink)
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Well pops purchased a set. Were going to get them mounted up this weekend and hopefully hit Bridgeport OHV park in a couple weekends. Anyone interested in possible pictures or feed back?
Updates?
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Old 06-02-2016, 07:09 AM   #13 (permalink)
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I'm still pleased with my set.
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Old 06-02-2016, 08:11 AM   #14 (permalink)
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There are some reviews on amazon, not many. Look like some nice tires, perfect timing I need a set.
http://www.amazon.com/Cooper-Discove...7d0565c2b0a840
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Old 06-02-2016, 02:48 PM   #15 (permalink)
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40s should be coming out in a few months. I plan to replace my 37in interco trxus MTs with the STT pro
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Old 06-02-2016, 06:58 PM   #16 (permalink)
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I have the 37s on a cj7. Great tire. I balanced them with airsoft pellets. Check ebay. I picked them up really cheap.
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Old 06-03-2016, 05:38 AM   #17 (permalink)
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40s should be coming out in a few months.
50/50 chance that will ever happen. That same rumor was going around when we were making the older version. I heard "in a few months" 6 years in a row.

Ive got some 37's on order- looking forward to trying them. FWIW- there's a 37x12.50 that is load D, and a 37x13.50 that is load E (17" only). If you're running these on a crawler, get the 13.50. Carcass is alot tougher.
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Old 06-03-2016, 05:38 AM   #18 (permalink)
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I have the 37s on a cj7. Great tire. I balanced them with airsoft pellets. Check ebay. I picked them up really cheap.
How much did you dump in each tire?
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Old 06-03-2016, 06:45 AM   #19 (permalink)
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Love them, 37x13.50 load E running at 25 psi. Impressed so far..





Balance easily, minimal road noise, clean out good in the mud. Havent wheeled hard yet.
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Old 06-03-2016, 07:18 AM   #20 (permalink)
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700 miles and a half dozen wheeling trips on my 35s and they are doing great. I have two pretty deep sidewall cuts but no leaks or issues thus far. Very happy with them.





Disclaimer: My tires are sponsored to me. My opinion would be the same regardless.
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Old 06-04-2016, 06:36 AM   #21 (permalink)
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How much did you dump in each tire?


I used 12oz per tire.
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Old 06-04-2016, 11:38 AM   #22 (permalink)
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I'm still pleased with my set.
What do your 35s actually measure? I'm thinking of trading a tsl for these my 38s on measure 36. If they are true 35s I think I'm sold on a set.
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Old 08-05-2016, 03:01 PM   #23 (permalink)
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A completely fictitious character is going around the innerwebs spreading the rumor that he may or may not have seen these in 40x13.50x17 deep in a test lab somewhere. Take it for what it's worth.
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Old 08-07-2016, 02:09 PM   #24 (permalink)
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What do your 35s actually measure? I'm thinking of trading a tsl for these my 38s on measure 36. If they are true 35s I think I'm sold on a set.
It's not an exact comparison, but my 37×12.40/17 STTs(the pros replaced the STT) measure 36.5 inches mounted on 9 inch wheels @ 35 psi on my 71 chevy.
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Old 08-07-2016, 04:08 PM   #25 (permalink)
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A completely fictitious character is going around the innerwebs spreading the rumor that he may or may not have seen these in 40x13.50x17 deep in a test lab somewhere. Take it for what it's worth.
Nice
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