The Discoverer STT PRO is Cooper’s Off-Road Maximum Traction light truck tire developed for the drivers of pickup trucks, Jeeps and SUVs who want confident, go-anywhere traction without sacrificing on-road performance. The Discoverer STT PRO is designed to provide impressive off-road capability combined with acceptable levels of on-road traction and civility.

Beginning with a robust, chip- and tear-resistant compound, the Discoverer STT PRO is molded into an aggressive, high-void tread pattern. Deep starting tread depths and alternating cleats and scoops in the shoulder lugs enhance traction in mud and other soft terrain, and mud release dimples help the tire self-clean. Anti-stone retention ribs at the base of the tread grooves eject small rocks to assist with preventing punctures due to stone drills. Wide lateral and circumferential channels aid hydroplaning resistance, and in-block siping creates additional biting edges for improved grip in slippery conditions.

The Discoverer STT PRO utilizes Cooper’s Armor-Tek3 Construction technology, which features a robust, three-ply polyester casing to improve puncture resistance. Two wide, strong steel belts support the tread and are reinforced by a single nylon cap ply.

While Off-Road Maximum Traction tires, which are often called mud tires, are branded with the M+S symbol and able to churn through deep snow, their typical oversize applications and the relative absence of snow-biting sipes in their large lugs can challenge their on-road wintertime traction on packed snow and icy surfaces.


  1. The life of the tires are alot better then I thought. Haven’t lost any chunks of tread at all, and fairly good wear. Noise level is not as bad as other tires, but it still has it. Mostly drive on highway and dirt roads.

  2. This is my first set of Cooper SST Pro, I’m very happy with my selection. They are a good set of tires.

  3. I’ve had Goodyear wrangler and bfg t/a ko2 tires. These cooper stt pro tires are far superior. I drive about 10 miles a day on unimproved and un maintained roads and another 10 miles a day on highway. These maximum traction tires are superior to those other 2 “all terrains” . These have good treadlife no chunking of tread like the others. And the traction actually will take you on all terrains.

  4. Two trips to the mountains in Colorado so far. Extremely happy with the off road traction. For an aggressive tire they were quieter than I expected.

  5. This is my second set. I got 40,000 miles out of the first set. I love the tires. They look killer on my truck. They drive well in wet or dry weather, light snow, ice and not too noisy for a mud tire. I haven’t had it off road. Make sure to rotate often or tires will cup and you will have vibration issues that balancing won’t fix. I will continue to buy these again!

  6. About to buy my second set, absolutely the best mud tires I have ever purchased, High mileage but still has decent traction on pavement. These tires have taken on some of the worst roads I have ever driven on, everything from sharp rocks to sand and mud with no cuts or chunks taken out. I will buy these tires til they stop making them.


Please enter your comment!
Please enter your name here