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Cooper
Rims not included with purchase of tires

Cooper Discoverer STT

Mud Terrain Light Truck tire

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  • SimpleScore™

    Our proprietary rating system
    for the modern tire buyer.

    7.7

    Good

    Score breakdown:

    8.3

    Long lasting

    Great

    8.0

    Handling

    Good

    7.8

    Traction

    Good

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69 Reviews

19 on SimpleTire50 from Google Shopping
Write a review

4.6

overall rating

89%

Would you buy again?

Review breakdown

  • 54 out of 100
  • 12 out of 100
  • 3 out of 100
  • 0 out of 100
  • 0 out of 100

Review summary

AI-generated from verified customer reviews.
The Cooper Discoverer STT tires receive generally positive reviews for their off-road performance and aggressive appearance.
The Cooper Discoverer STT tires are highly regarded for their off-road capabilities and rugged appearance. They perform well in challenging conditions, including mud and snow, making them popular among off-road enthusiasts and those with lifted vehicles. While some road noise is noted, it's generally considered acceptable for an aggressive tire. The tires' durability and traction are praised, though there are isolated reports of wear issues after extended use.

Scorecard

Dry

4.5

Wet

4.4

Winter

4.3

Comfort

4.4

Noise

3.8

Treadwear

4.2

19 SimpleTire reviews

Varm
5
Verified Customer
Sep 25, 2018

I don't know why Cooper would ever stop making the original Discoverer STT's - way better ride and wear than the replacements that I have on my F150

Elijah
4.5
Verified Customer
Jul 15, 2018

Great tire at a very competitive pricing! Shipping was fast! Great service from simple tire!

Varm
3
Verified Customer
Jul 11, 2018

Started off with good handling but after 20,000 miles, road noise and random wear pattern was not what I was hoping for.

Cody
5
Verified Customer
Jul 11, 2018

Bedt tires ever. Definitely the again from Simpletire.com

Cameron
5
Verified Customer
Jul 11, 2018

35x12.50R20 Great all around tire. Lighter than other mud tires with less road noise and same if not better mileage life. Wish they never stopped making this design.

Bruce
4
Verified Customer
Apr 8, 2018

I live in Arizona so wet handling and winter traction haven't been really tested in the short time I've had the tires. I had them in Mammoth CA during March storms and had no issues with traction. The dry handling is a little squirrelly, but they are not broken in. No appreciable road noise. Not sure what "ride handling" means as a function of tires alone.

Bruce
4
Verified Customer
Apr 8, 2018

PS--My mileage dropped off considerably with the new tires. I drive a Tacoma.

Joe
4
Verified Customer
Feb 23, 2018

I bought these tires for my 2003 Ford Explorer Sport 4x4. I was actually looking for a little larger size tire and purchased some slightly larger through Simpletire. The larger sized tires ended up not fitting without a lift (which turns out, no one makes a lift for this model Explorer). I really didn't want to invest into a lift to begin with, so I returned the tires. Simpletire made the return very easy and were very accommodating. I was looking for an aggressive all weather/ terrain tire and the Cooper STT was one of the only available in my size. (255/70R16). The Cooper STT's look great, provide serious traction, and the ride noise is very minimal. They hook up great in the snow and off road. Everyday highway/ city driving is also very smooth with very little noise.

John
4.5
Verified Customer
Dec 31, 2017

Ilove these tires on my 05Z71 they handle great they are aggressive enough off road to handle what I do. They last really great on the hwy which I keep them rotated a lot with every oil change I've still got another 10,000-20,000 miles left on them I'll definitely get another set

Dan
4.5
Verified Customer
Jan 20, 2017

I loved these tires got really good wear had on my 99 Dodge Ram reg cab short box 4inch lift I went threw MUD that went all the way up to my door couldn't open the door and let me tell guys I was EXTREMELY IMPRESSED I pretty much walked right threw it they clean out so dam well I got a lot of life out of the was never afraid of getting stuck all of my buds were supper impressed they wanted to buy a set I would have to say I love those tires not one thing to complain about had 285/75/16s 10ply I would run over shit and never worry about going flat heavy but for a good reason when I get another pickup hands down I am going to go out buy another set of cooper discover STT's for sure hang in there guys NEVER STOP MAKEING THESES TIRES

See all customer reviews

Get technical:

The Cooper Discoverer STT is an on and off-road mud terrain tire specially designed for drivers seeking strong traction, high performance, and durability. Ideal for off-road light trucks, SUVs, and pickups, the Cooper Discoverer STT does well on a variety of terrains while doing well on the road. The deep voids with channels that release suction make it self-cleaning so you don™t have to spend time washing your tires after every time you drive on muddy terrain. The siped lugs enhance traction both on and off the road by ejecting stones, mud, and snow while the 3-ply sidewalls enhance protection and resistance to puncture. Protecting your rims are the rim flange protectors. It also built with the Armor-Tek3 carcass constriction to enhance its resistance to impacts and bruising.



Features & Benefits

  • Scalloped shoulder lugs for excellent traction on soft surface like the highway and enhanced grip on hard surface like rocky and muddy terrain

  • Tapered stone ejectors to avoid stones and other elements from getting stuck in between the treads while improving overall traction on the highway
  • Superior resistance to puncture, impact, and bruises with its Armor-Tek3 carcass construction
Cooper
Category
Mud Terrain
Mileage Warranty
N/A
Load Index
2679 lbs (115)
Max Speed
100 MPH (Q)
Load Range
E (10 Ply)
Sidewall
Blackwall
Tread Depth
17.5/32nds
Part Number
76114
Tread Design
Symmetrical
Tire Weight
43 lbs
Section Width
8.46"
Overall Diameter
30.39"
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Cooper

Discoverer STT ∙ 0 sizes available