The Uncompromising Off-Road Tyre: Cooper Discoverer STT Pro
When the pavement ends and the real adventure begins, you need a tyre that refuses to compromise. Introducing the Cooper Discoverer STT Pro—the most extreme, all-season, off-road tyre Cooper offers to date. This is the ultimate tool for the serious off-roader, delivering best-in-class, unflinching performance in the toughest conditions without sacrificing on-road traction.
Built to master the trail, the STT Pro is engineered with a battle-ready mindset, combining legendary durability with aggressive, multi-terrain traction.
Armoured for the Trail: Armor Tek3 & Stone Armor
The greatest threat to an off-road journey is a compromised tyre. The Discoverer STT Pro is built with this in mind, featuring Cooper’s patented Armor Tek3 Technology. This advanced construction adds heavy-duty strength to the tyre’s sidewall, providing superior resistance to damage, punctures, and impacts when navigating boulders and tough, uneven terrain.
This is supported by:
- Shred-Resistant Compound: The rubber itself is formulated to combat shredding, cutting, and damage from sharp stones and off-road obstacles.
- Stone Armor Technology: A series of ridges and channels in the tread are designed to defend against sharp rocks and debris while actively expelling lodged stones, protecting the casing and ensuring tread integrity.
Aggressive Traction for Every Obstacle
The STT Pro is designed to find grip where others fail. Its tread is a purpose-built weapon for conquering any surface.
- Earth Diggers & Mud Slingers 2.0: This isn’t just a tread; it’s a traction system. Large blocks, or “Earth Diggers,” feature alternating mud scoops that forcefully dig into loose dirt, sand, or sticky mud. They work in tandem with the “Mud Slingers 2.0”—deep, wide trenches with additional notches that continuously clear thick mud from the tyre. This self-cleaning action ensures you have a fresh biting edge with every rotation.
- Rock Climber Sidewall: Traction isn’t limited to the tread. The STT Pro features an aggressive sidewall with deep “Climber Cleats” and special “Flex Grooves.” This design provides maximum grip on jagged rocks and helps the tyre power through deep mud, giving you traction from every angle.
Performance That Doesn’t End at the Trailhead
While it’s Cooper’s most extreme off-road tyre, the STT Pro is engineered to be more than just a trail-only weapon. It provides remarkable all-season traction on the road, giving you the confidence to drive to your adventure and back.
At a Glance: Key Features
- Cooper’s Most Extreme Off-Road Tyre: The pinnacle of Cooper’s off-road line, designed for the most challenging conditions.
- Armor Tek3 Technology: Patented construction provides superior strength and durability in the sidewall.
- Rock Climber Sidewall: Features “Climber Cleats” and “Flex Grooves” for exceptional grip on rocks and in deep mud.
- Earth Diggers: Large, aggressive tread blocks that dig into loose dirt, sand, and mud.
- Mud Slingers 2.0: Deep, self-cleaning trenches that clear mud for continuous traction.
- Stone Armor Technology: Ejects stones and defends the tyre from sharp rock damage.
- All-Season Performance: Delivers reliable off-road performance without sacrificing on-road traction.
- Standard Limited Warranty: Backed by Cooper’s commitment to quality.
maggie dingman –
Love them! Great looking tires! Rides really nice
Looks great in the jeep wanted to wait to review until we rode on them for awhile but overall really nice tires
Randol I StancilRandol I Stancil –
Great offroad tire with minimal NVH
Bought these exact tires from amazon about 2 years ago in november 2017 for my 1992 Toyota 4Runner. They are just about to need replacing after approx 20k miles. As long as you rotate these tires a minimum of once every 5k miles they roll very nicely with minimal road noise even at speeds of 70mph. If you have to go faster than 70mph these are probably not the tires for you. Have gone on mild trails with these tires as well as in fairly deep soft sand with no problems. They look amazing on the truck as well. I originally had Mickey Thompson Baja MTZ Radial tires on the same rims in the same size and I would not get those again after trying these cooper stt pro’s. They are a much more advanced tire and still offer the offroad performance that I need.
5 people found this helpful
Amazon Customer –
and they where pretty smooth. Offroad traction on trails has been great …
Arrived quickly. Tried them out with NO balancing on them just out of curiosity, and they where pretty smooth. Offroad traction on trails has been great and these have taken the mildly modded Samurai to yet another level of improved capability. Previous tires were 10+ year old BFG AT with only 30% or so tread left and to be fair, I got them 2nd hand and didn’t get to experience them new. So, probably any half way decent tire would have been noticeably better than old dried out tires, not matter how good they may have been when new. That being said, the Samurai nearly doubled it’s abilities with it’s 3″ lift and move up to 31’s… then adding a rear locker and proper diff gearing netted almost as big a gain again. Finally, adding these tires was not quite as big a jump as the other mods… but, again, a VERY noticeable gain in offroad traction and climbing ability. Long, 100% grade climbs that used to take effort and both hands and were a bit of a challenge, suddenly became casual, one hand on the wheel affairs. No chance to try them in in rain or snow yet…. but trail and rocky stuff has been great. Watch the “cooper puncture test” video online. As for noise…. my 4×4 is NOT my daily driver… so “tire noise” is more like TIRE MUSIC to me. But they are not particularly loud. Yes, you can hear them and they are more noise than your street car…. but, by FAR are NOT that noisy for mud tires. Prices on these fluctuate FAR more than BFG KM2 (my other choice)…. but the BFG’s would NEVER drop as low priced as these have from time to time…. When they dropped to only about $25 more than the cheapest tires out there, it was a no brainer! VERY pleased with them! [O.|||||.O]
5 people found this helpful
daniel adachidaniel adachi –
Quiet sounding tires that ride really nice. So for very impressed
Great smooth riding and sounding tires. Low tone humming sounds terrific 👍. Great grip on and off hwy . Very impressed. Worth the money. Will be putting them on my other 2 vehicles
Product –
Fast shipping
Tires arrived 2 days after ordering and exactly what described. Great tire
Thomas Smith –
Great tires
Installed these on new rims for my SXS to complete making it street legal. So far they have worked well in sand, mud, hard packed dirt and obviously on the street. I’ve have used other Cooper Adventurers on my trucks too!
One person found this helpful
jonathan finau –
Tire, no rim
I did not check the details and missed out on the rim but the wheel is good
One person found this helpful
Ron –
Great offroad tires for the price
I’ve put over 6000 mi on these over the last year and they have performed extremely well so far. My only complaint is they have gotten a lot noisier because the rubber is starting to stiffen up after being exposed to the hot climate I am in.
2 people found this helpful