Light Truck Tires

Discoverer STT PRO

Discoverer STT PRO™ is rated 4.4 out of 5 by 34.
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Discoverer STT PRO

Standard Limited Warranty
M+S Rated

The Discoverer STT PRO is Cooper’s most advanced, extreme tire to date! The Discoverer STT PRO provides exceptional traction and performance in some of the harshest terrains on Earth. The distinctive tread design and compound provide remarkable on the road performance without sacrificing off-road traction. 3-Ply Armor-Tek3, silica tread compound, aggressive 3-2 center rib design, side-biters and more, all wrapped up in Cooper’s advanced mud terrain tire. Push the Discoverer STT PRO to the limits and you’ll “discover” what your vehicle is truly capable of!

Tire Sizes & Specifications Will This Fit My Vehicle?

Features & Benefits

  • “ARMOR-TEK3®” Carcass Protection provides 50% more protection against impact damage than standard 2-ply tires.
  • The inner tread ribs alternating 3-2 pattern provides a number of significant performance benefits like: reduced road noise, increased stability and handling, superior soft surface (trail) and mud traction.
  • The “flex groove” provides a smoother ride by helping to dampen the impact generated by inconsistencies in pavement, potholes and gravel.
  • The Discoverer STT PRO features large, specially-designed cleats of rubber (side biters) on the shoulder area of the sidewall, to enhance traction and grip.
  • The asymmetrical scallops on alternating lugs direct mud into the mud scoops to allow the tire to pull through muddy terrains with ease.

Customer Reviews

Rated 5 out of 5 by from Lasting better than expected I have had these in a 295-65-20 for 18k miles. They are on a 4 door long bed Ram 2500 4x4 diesel. I pull heavy loaded (10k-25k) gooseneck trailers often and run with 800lbs of diesel in the bed most of the time. They are wearing even (Rotated every 5k) and quieter than most mud's I have run. I drive off-road on job-sites and ranches daily and drive 400-500 miles a week highway and they are holding up good. Had a problem with vibration at first but after 5 different trips to discount they finally got the one causing the shaking road force balanced and all is good now. I would buy these again but from someone else. My other trucks will be getting these when they need tires.
Date published: 2017-02-11
Rated 5 out of 5 by from Cooper STT PRO's If you are in need of a new set of tires for your work truck, jeep or your SUV then consider the Cooper Discoverer STT PRO. It is a versatile, long lasting tire that has a wide range of sizes and is a practical choice for almost any vehicle. I have had two sets of these tires and I have found them to be very quiet, durable, and affordable. Cooper Discoverer STT PRO tires are a great investment and awesome upgrade to my pickup. Road Noise: Most people believe that using off-road tires comes at the sacrifice of a quiet cabin. My past experiences with these tires say otherwise. Yes, these tires will make a little more road noise than AT tires, but that is expected from a more aggressive tire. I have no problem hearing the radio or having a conversation with anyone in my pickup. If road noise is your number one concern when buying new tires and you want as quiet a ride as possible, then you may prefer a less aggressive tire. Durability: I had a set of 285/70/17 on my previous pickup and never had a problem. No nails, no uneven tread-wear, and no blowouts. I drive a lot of gravel and the treads still looked near new with 10,000 miles on them. I was so pleased with their performance that I just recently bought another set of 265/70/17 for my new pickup. I have less than 1,000 miles on this new set, and again, I am very satisfied with their performance. Pricing: The first set I bought were 285’s and priced at $267 per tire. My new set of 265’s were $247 per tire. In my opinion this is a very good price for Cooper Pro’s. They are very competitive in the light truck market as their cost is right in line with a set of highway treads. If you are looking for a high quality tire that you can put on your work truck and run at maximum tire pressure for towing, or put a set of 35’s on your jeep and hit the trails, this tire is versatile enough to do it all. If your needs lean toward an aggressive tire with minimal road noise that doesn’t break the bank and can handle whatever you throw at it, then this is the tire for you.
Date published: 2017-02-09
Rated 4 out of 5 by from Overall great tire. I have put about 11k on these tires and can say I put them through about every type of common terrain with the exception of sand. Pavement (daily), gravel (daily), mud (occasional), snow and ice(occasional). They have performed fantastic in all of it. Ice was not as good as my old wrangler authority tires but the wranglers also had considerably more siping. They have been easy to balance with little weight, road noise isn't to bad and the ride is great. They are at about half tread now so I'm a little disappointed on tread life if all I get is 25k out of them. I will edit or write another review when they reach the end of their life to update the actual miles I get.
Date published: 2017-02-09
Rated 5 out of 5 by from Great tire Another great tire produced by Cooper with an affordable price point. I haven't seen a change in the tread after 8,000 miles. THE REASON,, for most people talking trash on ANY tire is because they wanted the show truck look AND the performance as well. For eg. going outside of the factory engineering with ridiculous offsets and backspacing. Anyone that knows anything about physics knows you can't throw whatever aftermarket wheels on without reading about the consequences first. Not to mention, ignoring proper PSI and poor driving habits. Anyways, you will not be disappointed, definitely worth the money and time spent.
Date published: 2017-02-07
Rated 5 out of 5 by from Best off-road tire I have ever had!!! Not sure how some of these people are saying that there tires are going bald after 2k or 15k miles. I have over 9k miles on mine right now and the tread still looks brand new!! i have the 35x12.5x20 on a Jeep Wrangler and expect to get probably 50k miles out these tires. I will go right back to them when it is time to replace these!!
Date published: 2017-01-29
Rated 5 out of 5 by from Excellent tire I have had this tire for awhile and it has held up really well i would definitely buy another set.
Date published: 2017-01-26
Rated 3 out of 5 by from They're the best looking mud tire. I bought these tires mainly because they're American and Nittos are not. I love the look and often get compliments at the gas station. I have them on my 1/2 ton Suburban and have done very little hauling with them. They are excellent in the rain and snow, however, they are wearing fast. I'm going to be lucky to get 30k miles. I'm definitely not happy with the tread life. I really would rather buy American, but Nittos last much longer.
Date published: 2016-12-25
Rated 5 out of 5 by from STT PRO THIS TIRE IS ON AN 82 150 AND ITS THE BEST TIRE BY FAR THAT I HAVE HAD ON IT DEEP SNOW MUD ROCKS EVERYTHING YOU WANT TO PUT THIS TIRE THROUGH IT WILL TAKE THE PUNISHMENT EVERY TIME
Date published: 2016-12-22
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