The Discoverer S/T Maxx is Cooper's Commercial All-Terrain light truck tire developed for the drivers of pickup trucks, SUVs, full-size crossovers and vans looking for a tough tire that provides the traction needed to navigate the loose terrain of job sites, gravel roads and off-road use. In addition to off-road capabilities, the Discoverer S/T Maxx is designed to deliver confident paved-road performance in dry, wet and wintry conditions, including snow.
The Discoverer S/T Maxx utilizes a cut- and chip-resistance compound molded into a symmetric, hybrid four-five rib design for low pattern noise and to promote even wear. The open pattern and multiple block edges provide the clawing traction necessary when negotiating soft, uneven soil, rocks or gravel. Stone ejector ribs and the non-parallel groove walls help resist rock retention, improving longevity by preventing stone drills that may potentially damage a tire. In-block sipes create the biting edges needed for traction in wet conditions, and the high-void pattern provides ample drainage away from the footprint for hydroplaning resistance. Discoverer S/T Maxx tires are molded to accept optional #15 metal studs to enhance traction on packed snow and ice.
Cooper's Armor Tek3 construction utilizes two 90 degree radial body plies, in addition to a third body ply with an eight degree bias to help reduce gaps between sidewall body cord. Two high-strength steel belts support the tread, while the nylon reinforcement above the steel belts provide high speed durability.
El neumático Discoverer S/T Maxx de Cooper pertenece a la categoría: Dentro/Fuera De Carretera Tracción Comercial para camiones ligeros. Fue desarrollado para conductores de picops, utilitarios deportivos (SUV, por sus siglas en inglés), utiliautos (crossovers) y camionetas; que buscan un neumático fuerte que proporcione la tracción necesaria para conducir sobre superficies sueltas en algunos sitios de trabajo, carreteras de grava o cualquier uso todoterreno. Además de la capacidad todoterreno ofrecidas por el Discoverer S/T Maxx, su diseño proporciona confianza sobre calles pavimentadas en condiciones secas, mojadas o invernales, incluyendo superficies con nieve.
El compuesto de caucho del Discoverer S/T Maxx es resistente a cortes y astillas, y es moldeado en una banda de rodamiento simétrica con cuatro-cinco segmentos híbridos, diseñados con un patrón que produce poco ruido y promueve un desgaste parejo. El patrón abierto de la banda de rodamiento y múltiples bordes en los bloques, proporcionan la tracción necesaria sobre superficies suaves, disparejas, con piedras o grava. Segmentos que expulsan piedras y paredes con ranura no paralelas ayudan a resistir la retención de piedras, mejorando la longevidad al prevenir perforaciones causadas por piedras, que podrían dañar el neumático. Pequeñas ranuras sobre la superficie de los bloques, proporcionan los bordes adherentes necesarios para obtener tracción en condiciones mojadas, además, el patrón con bastante espacio permite un drenaje fluido desde el área de contacto con la carretera, para así, mejorar la resistencia al deslizamiento sobre agua (hydroplaning). Los neumáticos Discoverer S/T Maxx pueden aceptar pernos opcionales para mejorar aún más la tracción sobre superficies con hielo y nieve compactada.
La construcción "Armor Tek³" de Cooper utiliza dos capas radiales de 90 grados, además de una tercera capa con un sesgo de 8 grados, ayudan a reducir el espacio entre la estructura de cordón del flanco. Dos correas resistentes a tensiones fuertes soportan la huella, mientras que, el refuerzo de nailon por debajo de las correas de acero proporciona mayor durabilidad debido a su uso a velocidades elevadas.
Specifications shown are as accurate as possible based on the information provided to us by the tire manufacturers. The dimensions reflect average values for tires measured on the specified measuring rim width. Individual tires may vary from data shown.
All tires are subject to continuous development. The tire manufacturers and Tire Rack reserve the right to change product specifications at any time without notice or obligation.
*Although regularly updated, the country of origin for tires may vary from what is shown. Unfortunately, we cannot accommodate requests for tires with a specific country of origin.
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See official manufacturer's warranty brochure for specific details.
New vehicle Original Equipment tire warranties often differ from those covering replacement tires. Consult your vehicle documents to confirm Original Equipment tire warranty coverage.
(75)Tire Category: Commercial All-Terrain
| Best in Category |
| Miles Reported |
| Recommended |
| Treadwear |
Cooper Discoverer S/T Maxx
Good
|
|---|
| 98% |
| 1.8M |
| 7.5 - Good |
| 8.9 - Excellent |
|
|
| 8.3 - Good |
|
|
| 8.6 - Excellent |
|
|
| 8.6 - Excellent |
|
|
| 7.3 - Good |
|
|
| 7.7 - Good |
Customers praise the Cooper Discoverer S/T Maxx for outstanding dry traction (9-10 ratings) and reliable wet performance, with strong hydroplaning resistance (8-10 scores) suited to rugged all-terrain use. Winter traction earns consistent praise in deep snow (8-10), though ice performance shows occasional 7s. Treadwear scores (8-10) highlight durability for heavy-duty use. Comfort receives mostly positive feedback (7-10) for ride quality, but noise levels split opinions-some report noticeable road hum (1-6 scores), while others find it acceptable. Overall, drivers rate it highly for off-road capability and on-road stability, aligning well with its commercial all-terrain design.
AI-generated from the text of customer reviews
Wet traction earns mostly 8-10s, with customers praising reliable grip and stability on wet terrain. Hydroplaning resistance also scores strong 8-10s, though some note challenges in extreme downpours.
...We've been through some heavy rains, and these tires handled great...
AMAZING.... Cooper describes this tire as commercial traction. I describe it as all around kick ------- tire. It has the aggressive look that Jeep owners demand, the off-road trail performance to match and yet it's quiet and comfortable on the highway. We've been through some heavy rains thanks to the 2017 hurricanes season, and these tires handled great. They should do well in the snow looking at the design and the ability to stud them. I wanted the Discoverer STT Pro since it seemed more off-road, but I am very happy with these in my Rubicon OE size 255/75R17. I highly recommend these tires for any Jeep, Truck or SUV!! It's a Jeep Thing, You Wouldn't Understand.
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823236
...surprisingly good wet performance...
Looking for off-road performance in snow and mud. A little disappointed. It is a good tire but, based on reviews from multiple sources, I expected it to perform better in mud and snow that it does. Need to use 4WD sooner than I've had with other AT tires. Whereas AT tires generally don't do well on ice, these have less traction than others.
On the positive side, surprisingly good wet performance and they are wearing well.
While you can't rate your own survey, you can:
849911
...I have experienced some rear tire slipping when cornering on wet pavement in 2WD but don't notice any when in 4-HI or Auto 4WD.
This tire has been almost everything I could have hoped for. It has performed very well in winter slush and snow, and the few times I've had it in muddy conditions. At the time of this review, I have put 65,000 miles on the set with a lot of life left but I still plan to replace them before winter comes around just because I'm not willing to chance making it through a Michigan winter with high mileage tires. I have experienced some rear tire slipping when cornering on wet pavement in 2WD but don't notice any when in 4-HI or Auto 4WD.
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957600
Most customers rate winter traction highly, with snow and deep snow scores often 8-10. Ice traction sees mostly 7-8, suitable for rugged all-terrain use. A few note lower ice grip but praise overall capability.
...It has weathered the winter storms and heavy snow like a champ, without needing the truck to be in 4WD...
The Discoverer ST Maxx true workhorse of a tire. It has the same 3 ply sidewall as the Discoverer STT Pro, but more suitable for rough terrain, gravel roads and onsite construction sites. It has weathered the winter storms and heavy snow like a champ, without needing the truck to be in 4WD. I definitely recommend this tire for those who use their truck as a work truck or onsite office.
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827459
...Work good in snow, with a heavy load. Would choose another winter AT tire, if not towing.
Cooper ST Maxx 295/70 x 18" load range E, 80psi max.
These work great, if you need a aggressive tire for heavy loads.
They are very close to factory OEM tire height, won't mess with axle ratio when towing. Work good in snow, with a heavy load. Would choose another winter AT tire, if not towing.
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972316
...My current Ford F350 came with Michelin ATX 2s and they were the worst tire in deep snow. After feeling less than safe with the Michelin tires I purchased the Cooper ST Maxx and I felt like I had a truck again!...
This is the second set of Cooper ST Maxx tires that I have run on heavy full size diesel pick ups. I think it's the best all terrain tire on the market and is close in traction to a dedicated off road mud tire. I put 35000 miles on my first set before I sold the truck. My current Ford F350 came with Michelin ATX 2s and they were the worst tire I've ever run in deep snow. After feeling less than safe with the Michelin tires I purchased the Cooper ST Maxx and I felt like I had a truck again! These tires are awesome in everything except sticky gumbo mud and Wyoming betonite. They do a good job in the mud but not comparable to a dedicated mud tire.
I'm so happy Tire Rack is now selling Cooper tires. I can save a couple hundred bucks on my next set.
While you can't rate your own survey, you can:
830163
Customers rate dry traction highly with most scores 9-10, praising confident grip and stability on rugged terrain. While a few note 7-8 ratings, performance excels in all-terrain conditions as intended.
...They're quiet on the road, handle sharp rocks, sand, snow with absolute ease...
I never wrote reviews, unless it's REALLY good or really bad.
I live and work in Arizona. I do a lot of off-roading. I work at a rural station and off-road after work and on my days off, when fire season ends I hunt and guide hunts all winter.
Arizona has a wide variety of terrain on our trails from dirt, washboard, rock (lots of sharp rock at that), sand, mud, gravel, ruts, etc. I've put these tires through A LOT of abuse in the 10,000 miles I've had them and have yet in all the above mentioned conditions and have yet to experience a single issue. They're quiet on the road, handle sharp rocks, sand, snow, etc with absolute ease. I don't care about anesthetics but these tires look great as well.
Overall, I'm extremely satisfied with both on and off road performance and don't foresee myself switching tires. I wasn't sure how I would like these but took a chance as they came highly recommended, and I couldn't be happier. If you're even thinking about ordering a set, absolutely do it!
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859134
...Grips like an m/t.
I bought a set of these tires two years ago and I love them. My last set of tires were Nitto Trail Grapps and I only got 27000 out of them. I am at 65000 with these tires and have another 15000 left in them. Great tire. Quiet for an r/t, grips like an m/t.
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840992
...As far as cornering goes, the 10-plys are a bit stiff, but then again, my rig is slightly less aerodynamic than an elephant so I won't be drifting it around corners at 80 mph anytime in the near future...
Long story short, I've driven my rig (a 2013 Jeep Wrangler Unlimited Sahara) with a set of these tires both on the road and off-road for the last several years without a single effin problem. They hold their pressure AMAZINGLY, and I still have an eighth of an inch of tread on them at almost 70,000 freaking miles! As far as cornering goes, the 10-plys are a bit stiff, but then again, my rig is slightly LESS aerodynamic than an elephant so I won't be drifting it around corners at 80 mph anytime in the near future. As far as off-road durability goes (coupled with a couple of inadvertent curb shots while parallel parking) they are darn near bullet-proof, and as far as road noise and vibration go, for a tire that is designed for ACTUAL periodic off-road use, they're not really that bad and a TON better than my buddy's Cepek Crusher tires. (Those things look amazingly cool, but they're louder than a tornado early warning system in Kansas!) In short, I bought these tires after doing a ton of research and they delivered in spades. That being said, I'm buying my second set from Tirerack.com as soon as I'm done writing this review. See ya in another 70k miles!
While you can't rate your own survey, you can:
872765
Most customers rate ride quality and noise comfort highly, with scores between 7-10. Positive feedback highlights smooth handling and durability in rugged conditions, impressive for a commercial all-terrain tire. Some variability noted, but overall satisfaction is strong.
...Cooper ST Maxx are very comfortable and surprisingly quiet.
TireRack order shipped fast and arrived fast. Cooper ST Maxx are a great all purpose tire, balanced well, good traction across all types of surfaces except not deep wet snow or deep clay mud. Cooper ST Maxx are very comfortable and surprisingly quiet.
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924913
...I drive a lot of miles a week on open hwy and in the city and weather I am doing 85 or 25 the ride quality is about the same. These are not Michelins and if that is the ride you want then you should buy those...
These are great compared to other tires in this class, rotate them, keep the correct pressure and you will see excellent results from these tires. I drive a lot of miles a week on open hwy and in the city and weather I am doing 85 or 25 the ride quality is about the same. These are not Michelins and if that is the ride you want then you should buy those, but if you want a great on/off road tire I can definitely recommend this tire. Have a great and safe driving.
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844306
...This tire is the absolute best tire for winter and mountain driving while maintaining fairly quiet ride on highway (all things considered for big tread pattern tire)...
Get them syped! This tire is the absolute best tire for winter and mountain driving while maintaining fairly quiet ride on highway (all things considered for big tread pattern tire). they don’t wear out as uneventful as, say, Wrangler Duratrac which I’ve had for years until I shifted to these. if you get them syped the traction on show and ice is freaking remarkable!!! best winter/mud/dirt road I’ve ever had. This tire will never leave you hanging and will get you in and out of the mountains with confidence.
While you can't rate your own survey, you can:
917413
Treadwear scores are predominantly 8-10, with customers praising durability in rugged all-terrain conditions. A few lower ratings exist, but most highlight exceptional longevity ideal for commercial use.
I had Cooper ST Maxx on my Ford expedition for 65k miles with plenty of tread left and I got 100k on this set with my ram 1500! Just got a new set as I wanted to upsize 1in otherwise I would have gotten more miles... I have had many AT and a few MT tires and they were all great, but I feel these are overall the best and the treadlife can't be beat! 100k miles with tread left... WOW!
I had Cooper ST Maxx on my Ford expedition for 65k miles with plenty of tread left and I got 100k on this set with my ram 1500! Just got a new set as I wanted to upsize 1in otherwise I would have gotten more miles. These tires work great on and off road in dry and inclement weather. I offroad occasionally and they perform in-between an AT and MT tire. On road they tow and haul like a dream! When maxing out my truck with a trailer, full bed or both they always deliver! Never have I been disappointed with this model and I
will continue to choose it for my vehicles. Heck my wife's car would have them if they made it in her size for her suv. I have had many AT and a few MT tires and they were all great, but I feel these are overall the best and the treadlife can't be beat! 100k miles with tread left... WOW!
While you can't rate your own survey, you can:
935600
...This set currently has 61,000 miles on them (getting rotated and balanced at a local Discount Tire) and still have 7/32 of treadlife left. The store manager looked up my total miles to date for me and did two double takes on the miles. Couldn't believe the miles I have on them...
These are absolutely the best all around all terrain tire I have ever run, and I have run many different tires on my Jeeps and Land Cruiser over the last 35 years. This set currently has 61,000 miles on them (getting rotated and balanced at a local Discount Tire) and still have 7/32 of treadlife left. The store manager looked up my total miles to date for me and did two double takes on the miles. Couldn't believe the miles I have on them. Always have them balanced and rotated every 3 to 5 thousand miles at Discount Tire (lifetime for free!!)
The tires are heavy, lost a couple miles to the fallen when changing to them but also had moved to a size larger than stock so not all MPG loss due to weight. Will absolutely run these tires again and, as of now, have no plans to run any other tire on my Jeeps.
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844231
...I got 70k+ out of the tires on my Ford before I sold the truck with PLENTY of tread left, was able to get well over 100k on my first set for the Ram (only reason I swapped them was to up size a little) and they had plenty of tread left. Currently I am at about 40k miles on this set and they look and feel like new!
This is my 3rd set of Cooper ST Maxx tires. I had a set on my Offroad Ford Expedition, and this is my second set on my Ram 1500. I tow and haul alot, off road regularly (light trails and off trail. no mudding or rock climbing) and these tires have never disappointed. I got 70k+ out of the tires on my Ford before I sold the truck with PLENTY of tread left, was able to get well over 100k on my first set for the Ram (only reason I swapped them was to up size a little) and they had plenty of tread left. Currently I am at about 40k miles on this set and they look and feel like new! Whether it be towing, hauling or just daily driving to and from work and no matter the weather these tires ALWAYS deliver! I will NEVER EVER put another tire on any truck or SUV I own so long as they make these. They are worth EVERY PENNY.
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1030331
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