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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Warranty summary for replacement tires purchased on or after 06/01/24(1 of 6)
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.
Ratings Charts & Reviews Cooper Discoverer S/T Maxx
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.
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Customers Like:
67 reviews mention "Wet Traction"
57 positive
10 negative
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.
October 03, 2023
(Verified Purchase)
4.4 out of 5
...I live in a dry climate, but when it does rain they handle the wet road well, never hydro plain, but they might spin with too much throttle at acceleration...
It’s an old school skinny 33” tire that gives a truck a little more offroad security without a lift. They’ve been great in every season. In snow you have to remember to air down because fully inflated they seem to want to spin in fresh snow. The “pizza cutter” size allows the tire to dig down in deep snow for traction, they do not float my 7.3 powerstroke cclb truck. I live in a dry climate, but when it does rain they handle the wet road well, never hydro plain, but they might spin with too much throttle at acceleration. They handle Rocky Mountain roads with ease, I’m not concerned with a puncture due to carcass construction. They haven’t seen a ton of mud, but they handled it well. The cooper st maxx clears mud and debris well. I have a gravel driveway and once on the highway rocks are flung out into the fender well regularly. We regularly haul a truck camper in the bed and these tire are always up for the task. They are firm on the road and corner well with great sidewalk stability. I’d run them again for my full size diesel without hesitation.
Vehicle: 1999 Ford F350 4wd Miles Driven on Tires: 12,000 Driving Conditions: Combined Off Road/Highway Location: DUFUR, OR Driving Style: Spirited
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.
October 12, 2022
(Verified Purchase)
4.9 out of 5
...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.
Vehicle: 2006 Toyota Tundra Access Cab SR5 4wd Miles Driven on Tires: 10,000 Driving Conditions: Combined Off Road/Highway Location: BOZEMAN, MT Driving Style: Spirited
Vehicle: 2014 Chevrolet Silverado 2500 HD 4wd Regular Cab Miles Driven on Tires: 8,000 Driving Conditions: Combined Off Road/Highway Location: BOLTON LANDING, NY Driving Style: Average
...Had deep snowfall in 2018 over 10 inches on road, pulled right through...
I've had no problem with these tires. Little noisy but I like noise. Responsive on interstate highways as well as off road. Not much wear on them after 20,000 miles. Had deep snowfall in 2018 over 10 inches on road, pulled right through. I recommend!
Vehicle: 2010 Ford F150 XL 4x4 Super Cab Miles Driven on Tires: 20,000 Driving Conditions: Mostly Highway Location: INWOOD, WV Driving Style: Spirited
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.
66 reviews mention "Ride Quality"
54 positive
12 negative
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.
December 09, 2022
(Verified Purchase)
4.5 out of 5
...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.
Vehicle: 2019 Chevrolet Silverado 1500 4WD Crew Cab Miles Driven on Tires: 15,000 Driving Conditions: Combined Off Road/Highway Location: OHIO, NY Driving Style: Average
...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 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.
Vehicle: 2007 Chevrolet Silverado 2500 HD 4wd Regular Cab Miles Driven on Tires: 30,000 Driving Conditions: Combined Highway/City Location: DUNNVILLE, KY Driving Style: Average
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.
November 20, 2019
4.8 out of 5
...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.
Vehicle: 2008 Jeep Grand Cherokee Laredo Miles Driven on Tires: 61,000 Driving Conditions: Combined Highway/City Location: FAYETTEVILLE, GA Driving Style: Average
...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.
Vehicle: 2016 RAM 1500 4WD Crew Cab Miles Driven on Tires: 40,000 Driving Conditions: Combined Off Road/Highway Location: MOUNT AIRY, MD Driving Style: Spirited
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