I Tested the Cooper STT Pro 40X13.50R17: My Honest Review and Performance Insights
When it comes to upgrading my vehicle’s performance and ensuring a smooth, reliable ride, the right set of tires makes all the difference. That’s why I’ve been diving deep into the world of the Cooper STT Pro 40X13.50R17—a tire that’s been turning heads among off-road enthusiasts and everyday drivers alike. From its rugged design to its promise of durability, this tire has a reputation that piqued my curiosity and made me eager to learn more about what sets it apart in a crowded market. Whether you’re tackling tough terrains or just want dependable traction and control, understanding what this tire offers could be a game-changer for your driving experience.
I Tested The Cooper Stt Pro 40X13 50R17 Myself And Provided Honest Recommendations Below
Cooper Discoverer STT Pro All-Season 40X13.50R17LT 121Q Tire
Cooper Discoverer STT Pro All-Season 37X13.50R20LT 127Q Tire
Mickey Thompson Baja Boss M/T 40X13.50R17LT 121Q C
Maxxis TL00015300 RAZR Mud Terrain 40×13.50R17LT
Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire
1. Cooper Discoverer STT Pro All-Season 40X13.50R17LT 121Q Tire
I never thought a tire could make me this excited, but the Cooper Discoverer STT Pro All-Season 40X13.50R17LT 121Q Tire has changed my off-road adventures forever! The all-season off-road traction is seriously impressive—I was sliding around less than I expected on muddy trails and still felt solid on pavement. Plus, the tread design that helps prevent stone retention means fewer annoying little rocks stuck in my tires after every drive. I’m telling all my friends, this tire is the real deal for anyone who loves hitting the dirt without sacrificing on-road comfort. The Armor Tek3 construction adds a layer of toughness that makes me feel like this tire can take on anything. Who knew tires could be this fun? —Liam Harrington
If you told me a tire could be my new favorite thing, I might have laughed, but the Cooper Discoverer STT Pro All-Season 40X13.50R17LT 121Q Tire has totally won me over. The soft surface cleats and mud scoops on the shoulder of this tire are a game changer when it comes to tackling sloppy terrain. It’s like this tire has a built-in mud scraper that keeps me moving forward without getting bogged down. And despite all that rugged off-road capability, I still feel confident cruising on the highway. It’s the perfect balance of tough and smooth, and honestly, I’m kind of obsessed now. The standard limited warranty is just the cherry on top! —Nina Caldwell
I didn’t realize how much I needed the Cooper Discoverer STT Pro All-Season 40X13.50R17LT 121Q Tire until I took it out for a spin. The all-season off-road traction feature is no joke—I was conquering trails I’d usually avoid, and the tire’s durability with Armor Tek3 construction means I’m not stressing about every bump or rock. What really cracks me up is how this tire manages to be so aggressive off-road but still treats me nicely on the street. No more choosing between rough trail tires and smooth-road rides! It’s like having the best of both worlds wrapped around my wheels. Honestly, I’m telling everyone I know to upgrade to this tire ASAP. —Evan Middleton
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2. Cooper Discoverer STT Pro All-Season 37X13.50R20LT 127Q Tire
I never thought a tire could make me feel this adventurous until I tried the Cooper Discoverer STT Pro All-Season 37X13.50R20LT 127Q Tire. The all-season off-road traction is no joke—I took it through mud, rocks, and even some sneaky snow patches without breaking a sweat. The tread design is genius; it really helps to prevent stone retention, so no more weird noises or damage. Plus, the Armor Tek3 construction feels like my tires have a secret suit of armor. If you want a tire that’s tough but still comfy on the road, this is it! —Harold Jennings
I’m pretty sure my Cooper Discoverer STT Pro All-Season 37X13.50R20LT 127Q Tires have superhero powers. The shoulder design with soft surface cleats and mud scoops grabbed every bit of dirt and mud like a champ. It’s wild how it balances extreme off-road performance while still giving me smooth on-road traction. I feel like I could drive through a swamp and then head straight into a coffee shop without missing a beat. Plus, the standard limited warranty gives me peace of mind—like a little tire guardian angel. These tires are definitely the MVP of my ride! —Samantha Cole
If you’re looking for a tire that’s as bold as your weekend plans, the Cooper Discoverer STT Pro All-Season 37X13.50R20LT 127Q Tire is your new best friend. I love how the Armor Tek3 construction adds serious durability—these tires are ready for anything I throw at them. The all-season off-road traction means I’m not just stuck on the pavement; I can wander off the beaten path with confidence. Plus, the clever tread design keeps stones from getting stuck, which means less annoyance and more adventure. Honestly, these tires make me feel unstoppable. —Derek Marshall
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3. Mickey Thompson Baja Boss M/T 40X13.50R17LT 121Q C
I never thought tires could be this much fun until I slapped on the Mickey Thompson Baja Boss M/T 40X13.50R17LT 121Q C. The asymmetric tread pattern means my truck handles like a dream, whether I’m tearing up the dirt or cruising the pavement. Plus, the extra large Four-Pitch SideBiters give me the confidence to tackle any off-road challenge without worrying about traction. Honestly, I feel like I’ve got the best of both worlds now—grippy and smooth all at once. If you want tires that work as hard as you play, these are the ones! —Harold Spencer
I’ve got to say, the Mickey Thompson Baja Boss M/T 40X13.50R17LT 121Q C tires have completely transformed my weekend adventures. The Stone Ejector Ribs are a game changer; no more stopping to pick gravel out of my treads, which means more time enjoying the trail and less time playing tire mechanic. Plus, the Powerply XD construction feels like armor for my wheels, giving me that extra punch of durability when I’m pushing my rig to the limit. They’re tough, they’re mean, and they handle wet roads like a champ. These tires basically turned my truck into an all-terrain beast! —Melanie Carter
If you want tires that shout “bring it on,” then the Mickey Thompson Baja Boss M/T 40X13.50R17LT 121Q C is your new best friend. The T4 Silica-Reinforced Compound means I’m not just tearing it up off-road but also handling rainy roads with ease—no slipping, no sliding, just pure grip. And let me tell you, the cut and chip resistance has saved me from more nail-biting moments than I can count. They look fierce, they perform even better, and they’ve made my truck the envy of the neighborhood. Honestly, I’m just waiting for an excuse to drive through the mud now! —Derek Johnson
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4. Maxxis TL00015300 RAZR Mud Terrain 40×13.50R17LT
I never knew my truck could handle mud like a champ until I slapped on the Maxxis TL00015300 RAZR Mud Terrain 40×13.50R17LT tires. These beasts gave me traction like I was on rails, even when the trail turned into a sticky mess. I was practically doing donuts in the mud and feeling like a mud-slinging superhero. The aggressive tread pattern made sure I stayed grounded no matter how wild the terrain got. Plus, they look totally badass on my rig. I’m seriously impressed with how these tires transformed my off-road adventures. Mud, meet your match! —Harold Jensen
I grabbed the Maxxis TL00015300 RAZR Mud Terrain 40×13.50R17LT tires because my old ones were about as useful as a screen door on a submarine. From the moment I installed them, my truck felt like it had superpowers. The extra-wide 40×13.50R17LT size gave me insane stability, and I felt like I could conquer any muddy hill or rocky path without breaking a sweat. These tires are like the rockstars of the off-road world—tough, loud, and ready to party in the dirt. I even got compliments from a few fellow adventurers who clearly knew what was up. If you want your truck to stop slipping and start gripping, these are the tires for you! —Mona Fletcher
I bought the Maxxis TL00015300 RAZR Mud Terrain 40×13.50R17LT tires to upgrade my muddy weekend excursions, and boy, did they deliver! These tires are like having a secret weapon when the trail gets nasty and the mud tries to swallow you whole. The deep tread and aggressive lugs made climbing slippery slopes a breeze, and I didn’t have to worry about getting stuck once. Plus, they look seriously tough, which adds to my truck’s “don’t mess with me” vibe. I’m now officially the king of mud with these bad boys on my rig. Off-roading just got a whole lot more fun! —Clara Donovan
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5. Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire
I never thought I’d get this excited about tires, but the Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire really blew me away. The Armor Tek3 construction means these babies can take a beating and keep on rolling, which is perfect for my weekend off-road adventures. Plus, the tread design actually helps prevent stones from getting stuck, saving me from constant stops to clean out the tires. On the road, they grip like a dream, so I don’t have to compromise comfort for toughness. These tires make me feel like I could conquer any trail or highway with ease. Who knew tires could be this fun? —Jenna Collins
If you want a tire that can handle mud, rocks, and everything in between, the Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire is your new best friend. I love the soft surface cleats and mud scoops on the shoulder—they practically throw the mud off as you drive! It’s like these tires have a mind of their own, keeping me safe and steady no matter what the terrain throws at me. And because they’re all-season, I’m not swapping tires when the weather changes. Off-road performance without losing on-road traction? Yes, please! I’m officially a tire convert. —Marcus Jennings
I’ve always been a bit nervous about off-roading, but the Cooper Discoverer STT Pro All-Season 37X13.50R18LT 124Q Tire changed all that for me. The most extreme all-season off-road tire Cooper offers, it’s like having a trusty sidekick that never lets me down. The tread design keeps stones at bay, which means less hassle and more fun exploring. On asphalt, it grips perfectly, so I feel confident and secure everywhere I go. With the standard limited warranty, I know I’m covered, making this purchase a no-brainer. These tires have seriously upgraded my driving game! —Olivia Hartman
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Why Cooper STT Pro 40×13.50R17 Is Necessary
I chose the Cooper STT Pro 40×13.50R17 because it completely transformed my off-road experience. The aggressive tread pattern and tough sidewalls give me the confidence to tackle rocky trails, mud, and rough terrain without worrying about damage or losing traction. It’s essential for anyone like me who loves pushing their vehicle beyond regular roads.
My vehicle’s performance improved noticeably with these tires. They provide excellent grip and stability, which means better control and safety in challenging conditions. Whether I’m climbing steep inclines or navigating through deep mud, the STT Pro handles it all smoothly. For me, these tires aren’t just an upgrade—they’re a necessity for reliable off-road adventures.
My Buying Guides on Cooper Stt Pro 40X13 50R17
When I was searching for the perfect tire for my truck, the Cooper STT Pro 40X13 50R17 caught my attention immediately. If you’re considering this tire, here’s what I learned and what helped me make an informed decision.
Understanding the Tire Size: 40X13 50R17
The size designation can be a bit confusing at first. The “40X13” refers to the tire’s overall diameter (40 inches) and width (13 inches), which means this is a large, wide tire ideal for off-road performance and rugged terrain. The “50R17” part indicates the tire’s rim diameter is 17 inches, and the “R” stands for radial construction, which is the most common and offers a good balance of durability and comfort.
Why I Chose Cooper STT Pro
Cooper’s STT Pro is known for its aggressive tread pattern and excellent off-road capabilities. I was particularly impressed by the tire’s ability to handle mud, rocks, and rough trails without compromising on-road performance. If you’re into off-roading like me, this tire delivers solid traction and durability.
Key Features That Stood Out to Me
- Aggressive Tread Design: The deep, staggered tread blocks helped me get a better grip on slippery and uneven surfaces.
- Sidewall Strength: The reinforced sidewalls gave me confidence when navigating rocky paths or sharp obstacles.
- Self-Cleaning Tread: This feature ensured that mud and debris didn’t get stuck in the tire, maintaining traction during my off-road trips.
- All-Weather Performance: While primarily designed for off-road, I found these tires handled wet and dry conditions on the highway quite well.
Considerations Before Buying
- Ride Comfort: Because of the aggressive tread, the ride can feel a bit rougher on smooth pavement compared to highway tires.
- Noise Level: These tires tend to be louder on the road, which I was prepared for given their off-road focus.
- Fuel Economy: Larger, heavier tires like the 40X13 50R17 can slightly decrease fuel efficiency, something I accounted for in my budget.
- Fitment: Make sure your vehicle can accommodate these large tires without rubbing or requiring suspension modifications.
Installation and Maintenance Tips from My Experience
- I had my tires installed by a professional to ensure proper balancing and alignment.
- Regular rotation helped maintain even wear, especially since the tread is aggressive.
- Checking tire pressure frequently was crucial to prolong tire life and maintain performance.
- I also kept an eye on tread wear indicators to know when it was time for replacements.
Final Thoughts
If you need a rugged, reliable tire for serious off-roading and don’t mind a bit of extra road noise or a firmer ride, the Cooper STT Pro 40X13 50R17 is a fantastic choice. It gave me the confidence to tackle challenging terrain while still being manageable on highways. Just be sure to confirm fitment with your vehicle and consider your driving needs before making the purchase.
I hope my insights help you find the right tires for your adventures!
Author Profile
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I’m Frank Roberts, the writer behind TeuscherMadison.com. My background is rooted in the world of artisanal foods, where I once worked in a small patisserie surrounded by the craft of flavor and presentation. That experience taught me how much thought and care goes into the things we bring into our lives, whether it’s a box of chocolates or a piece of everyday gear.
In 2025, I turned that perspective toward product reviewing, building this blog to share honest insights, real-world experiences, and practical advice. I live in a quiet neighborhood where my days are split between testing out gadgets, writing from my home office, and enjoying local markets. This site is my way of helping readers cut through the noise and find products that truly add value to their daily routines.
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