The Discoverer Road+Trail AT is Cooper's On-Road All-Terrain tire, built for the drivers of pickups, work vehicles, and SUVs who need a tire with the rugged durability to keep up with their active lifestyles. Engineered to tackle dirt, gravel, mud and the urban jungle, the Discoverer Road+Trail AT combines off-road prowess with agreeable on-road comfort and year-round traction. It even handles light snow well enough that it meets the tire industry's severe snow service rating requirements and earns the three-peak mountain snowflake (3PMSF) symbol.
A durable compound resistant to cutting, cracking and tearing joins with the Discoverer Road+Trail AT's next-generation all-terrain tread pattern. This design features rugged, interlocking tread blocks off-roaders expect working alongside Cooper's Road Glide Technology to provide a smooth, quiet experience on the pavement. The alternating scoop and cleat lugs in the shoulder, sporting a thick, angled design further down the sidewall, were created to find grip on rock, in thick mud or loose soil. Deep, circumferential grooves and wide, lateral notches improve resistant to hydroplaning. The interlocking center tread lugs provide stability on the road and snow, while zigzag sipes in the shoulders create the biting edges needed for traction in slippery conditions.
The internal construction of the Discoverer Road+Trail AT consists of a robust, two-ply polyester casing. A single-ply, nylon reinforcement above two high-strength steel belts further increases durability and handling response, along with providing high-speed stability.
Note: While non-winter tires featuring the three-peak mountain snowflake (3PMSF) symbol may provide additional longitudinal snow traction beyond what all-season (M+S) tires not bearing the symbol can deliver, they do not match the capability of a true winter tire in all adverse weather conditions.
El neumático Discoverer Road+Trail AT de Cooper pertenece a la categoría: Dentro De Carretera Todoterreno y fue fabricado para conductores de picops, vehículos de trabajo duros y vehículos utilitarios deportivos (SUV, por sus siglas en inglés), que necesitan un neumático durable y fuerte, que pueda mantener su estilo de vida activo. Diseñado para enfrentar la tierra, grava, lodo y la jungla urbana, el Discoverer Road+Trail AT, combina destreza todoterreno con una comodidad agradable en carreteras y tracción durante todas las estaciones del año. Incluso, maneja nieve ligera al punto de satisfacer los requisitos de la industria, en relación a condiciones de nieve severa, por esta razón, cuenta con el símbolo “tres picos montaña/copo de nieve”, 3PMSF (three-peak mountain snowflake symbol, 3PMSF).
El compuesto de caucho durable resistente a cortaduras, rajaduras y desgarros del Discoverer Road+Trail AT, trabaja conjuntamente con un patrón de la huella de próxima generación. Este diseño posee bloques fuertes todoterreno entrelazados, que trabajan junto con la tecnología "Road Glide" de Cooper para proporcionar un andar parejo y tranquilo sobre pavimento. El diseño de "cucharas alternadas" en los hombros, con tacos gruesos y angulados en la parte más baja de los hombros, fueron creados para proporcionar tracción sobre piedras, lodo espeso o tierra suelta. Canales circunferenciales profundos y ranuras laterales anchas mejoran la resistencia al deslizamiento sobre agua (hydroplaning). Los tacos o bloques centrales entrelazados de la huella proporcionan estabilidad en la carretera y superficies con nieve, mientras que pequeñas ranuras tipo zigzag en los bloques de los hombros, proporcionan los bordes adherentes necesarios para ofrecer tracción sobre superficies resbalosas.
La construcción interna del Discoverer Road+Trail AT consiste de una estructura robusta de dos capas de poliéster. Una capa de refuerzo de nailon por encima de dos capas de acero de gran fortaleza, aumentan aún más, la durabilidad y respuesta, a la vez de proporcionar estabilidad a velocidades altas.
Nota: Mientras que los neumáticos que no son para uso exclusivo de invierno, pero cuentan con el símbolo tres picos montaña/copo de nieve, 3PMSF (three-peak mountain snowflake, 3PMSF) podrían proporcionan mayor tracción longitudinal en nieve, que la ofrecida por neumáticos para toda estación (M+S) sin el símbolo 3PMSF; ninguno iguala la capacidad de un neumático para uso exclusivo en el invierno, en climas con condiciones adversas.
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.
For assistance selecting products for your vehicle, please contact our sales specialists at 888-541-1777 or via email.
Warranty summary for replacement tires purchased on or after 06/01/24(1 of 2)
Treadwear:6 Years / 65,000 Miles Half mileage for rear if different size than front
Manufacturer Special Warranty:45 Day Road Test Guarantee (1)
Additional Information:(1) Exchange for another Cooper brand tire
Notes
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.
Tire Rack Test Results Cooper Discoverer Road+Trail AT
Taking Off-Road Tires On-Road - 2024 Test 9 – With Winter Update(31:03)
Twelve selections from the On-Road, Off-Road, and Rugged All-Terrain categories comprise this All-Terrain tire test to see how they stack up when it comes to daily driving. A/T tires excel off the beaten path, but what about the rest of the time? The popular aesthetics of this category lead to many using them on their daily drivers. So, what are you sacrificing by choosing these products for your concrete journeys? Noise, comfort, handling, safety, and winter performance are all considered when we test all-terrain off-road tires on the road!
Ratings data demonstrates the Bridgestone Turanza EL450 RFT excels in comfort, with consistent 8-10 scores for a quiet, smooth ride. Treadwear shows variability-many report strong longevity (9-10), though some note premature wear (0-2 scores). Winter traction earns 7-8 ratings for light snow performance, with mixed feedback on ice (2-7 range). Wet traction impresses with 8-10 scores, highlighting reliable grip and hydroplaning resistance. Dry traction stands out as exceptional (9-10), praised for confident handling and responsiveness. While most drivers praise its all-season capabilities, a few note reduced ice performance and treadwear inconsistencies. Overall, it delivers well-rounded grand touring performance with a focus on comfort and dry/wet stability.
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Customers Like:
61 reviews mention "Wet Traction"
46 positive
15 negative
Most ratings for wet traction are 9s and 10s, showcasing excellent grip and hydroplaning resistance. A few lower scores exist, but the Turanza EL450 RFT excels in all-season wet conditions.
October 14, 2025
(Verified Purchase)
4.9 out of 5
For a run flat tire, these tires provide a very smooth ride and perform very good in wet road condition's.
For a run flat tire, these tires provide a very smooth ride and perform very good in wet road condition’s.
Vehicle: 2014 BMW 428i xDrive Coupe M Sport Line Built On Or Before 2/2014 Miles Driven on Tires: 8,000 Driving Conditions: Combined Highway/City Location: BRICK, NJ Driving Style: Spirited
Customers report reliable winter traction with many scoring 8s and 9s in snow conditions. Some note reduced ice grip with occasional lower ratings, but overall performance suits all-season needs.
March 23, 2022
4.2 out of 5
Tires came with purchase of vehicle, only complaint is tread life, otherwise handled well in the rain and snow.
Tires came with purchase of vehicle, only complaint is tread life, otherwise handled well in the rain and snow.
Vehicle: 2018 MINI Countryman With Runflat Cooper S E ALL4 Miles Driven on Tires: 30,000 Driving Conditions: Combined Highway/City Location: CHESTERFIELD, MO Driving Style: Average
Customers rate the Turanza EL450 RFT's dry traction highly, with most scoring 9s and 10s for responsive handling and confident grip. Scores between 7-8 still reflect reliable all-season performance, aligning well with its grand touring design.
June 13, 2023
(Verified Purchase)
4.6 out of 5
...good traction...
One of the best tires I've owned. So quiet and comfortable. Yet, good traction as well. And the fact they are run flats makes these tires a home run. Would buy again for sure.
Vehicle: 2019 Lexus UX 250h F Sport AWD Miles Driven on Tires: 20,000 Driving Conditions: Combined Highway/City Location: DAVIDSONVILLE, MD Driving Style: Average
...Traction and cornering are very similar to the Michelins for everyday and sporty driving, as is tracking and ride. Steering response with the Bridgestones was simply perfect on the Alfa...
I did not write a review of these tires sooner because I had nothing to compare them with. The tire seemed good, but with a new car and new tires it was hard to judge how good. I recently replaced them with Michelin AS3+ tires so I am happy to report how the Bridgestones compare with the highly rated AS3+ tires. They compare very well. The run-flat Bridgestones were created for this car and Alfa did a very good job of tuning the tire to the car. Traction and cornering are very similar to the Michelins for everyday and sporty driving, as is tracking and ride. The Bridgestones have a slightly softer sidewall that I think is better suited to the Alfa than the Michelins. The Michelins can be a bit harsh in Dynamic mode if you have the adaptive suspension. Steering response with the Bridgestones was simply perfect on the Alfa, but the Michelins are just a bit too responsive on the highway in my opinion. In short, the Turanzas are very good tires that compare favorably with the ultra high performance Michelin AS3s. I think the Bridgestone Turanza OEM tires are as good or better for the Giulia than the Michelins. Which is very good indeed, especially for a run-flat.
My car is leased, so I removed the run-flat Bridgestones with about half the tread left and will re-install them when I turn it in. Half the tread left after only 5,000 miles indicates a rather fast wearing tire, but I blame myself for that. The Alfa Romeo just begs to be driven hard, and the first 5,000 miles put a big dent in the tread. Multiple zero to 60 in 5.2 second starts a day will do that I guess. I'm sure a more reasonable driving style (good luck with that with the Giulia) will result in greatly improved wear. Still, I suspect that the 400 wear rating may be a little too high for this tire.
The OEM Turanza run-flats are excellent tires and are particularly well suited for this car. I would definitely buy them again, even over the Michelin AS3+
Vehicle: 2017 Alfa Romeo Giulia Miles Driven on Tires: 5,000 Driving Conditions: Combined Highway/City Location: DURHAM, NC Driving Style: Spirited
Customers praise the Turanza EL450 RFT's excellent comfort, with most scoring 9s and 10s for smooth ride quality and low noise. High marks highlight refined Grand Touring performance, while a few lower ratings suggest minor variances-overall satisfaction remains strong in this category.
June 13, 2023
(Verified Purchase)
4.6 out of 5
...So quiet and comfortable. Yet, good traction as well...
One of the best tires I've owned. So quiet and comfortable. Yet, good traction as well. And the fact they are run flats makes these tires a home run. Would buy again for sure.
Vehicle: 2019 Lexus UX 250h F Sport AWD Miles Driven on Tires: 20,000 Driving Conditions: Combined Highway/City Location: DAVIDSONVILLE, MD Driving Style: Average
...It provides great responsiveness and comfortable ride.
This was the OEM tire and could not purchase anything else. It provides great responsiveness and comfortable ride.
Vehicle: 2021 MINI Countryman With Runflat Cooper S ALL4 Miles Driven on Tires: 1,000 Driving Conditions: Mostly Highway Location: LOUISVILLE, KY Driving Style: Spirited
They are very responsive and quiet for run-flat tires.
They are very responsive and quiet for run-flat tires.
Vehicle: 2015 BMW 428i Convertible M Sport Line Miles Driven on Tires: 3,000 Driving Conditions: Combined Highway/City Location: FREDERICK, MD Driving Style: Spirited
Most customers rate treadwear highly with scores of 9-10, praising the Turanza EL450 RFT's longevity in all-season conditions. While a few report lower scores, the majority highlight durable performance ideal for grand touring use.
September 26, 2018
(Verified Purchase)
4.1 out of 5
...Half the tread left after only 5,000 miles indicates a rather fast wearing tire, but I blame myself for that. The Alfa Romeo just begs to be driven hard, and the first 5,000 miles put a big dent in the tread. Multiple zero to 60 in 5.2 second starts a day will do that I guess...
I did not write a review of these tires sooner because I had nothing to compare them with. The tire seemed good, but with a new car and new tires it was hard to judge how good. I recently replaced them with Michelin AS3+ tires so I am happy to report how the Bridgestones compare with the highly rated AS3+ tires. They compare very well. The run-flat Bridgestones were created for this car and Alfa did a very good job of tuning the tire to the car. Traction and cornering are very similar to the Michelins for everyday and sporty driving, as is tracking and ride. The Bridgestones have a slightly softer sidewall that I think is better suited to the Alfa than the Michelins. The Michelins can be a bit harsh in Dynamic mode if you have the adaptive suspension. Steering response with the Bridgestones was simply perfect on the Alfa, but the Michelins are just a bit too responsive on the highway in my opinion. In short, the Turanzas are very good tires that compare favorably with the ultra high performance Michelin AS3s. I think the Bridgestone Turanza OEM tires are as good or better for the Giulia than the Michelins. Which is very good indeed, especially for a run-flat.
My car is leased, so I removed the run-flat Bridgestones with about half the tread left and will re-install them when I turn it in. Half the tread left after only 5,000 miles indicates a rather fast wearing tire, but I blame myself for that. The Alfa Romeo just begs to be driven hard, and the first 5,000 miles put a big dent in the tread. Multiple zero to 60 in 5.2 second starts a day will do that I guess. I'm sure a more reasonable driving style (good luck with that with the Giulia) will result in greatly improved wear. Still, I suspect that the 400 wear rating may be a little too high for this tire.
The OEM Turanza run-flats are excellent tires and are particularly well suited for this car. I would definitely buy them again, even over the Michelin AS3+
Vehicle: 2017 Alfa Romeo Giulia Miles Driven on Tires: 5,000 Driving Conditions: Combined Highway/City Location: DURHAM, NC Driving Style: Spirited
This is clearly a luxury performance all-season. Great choice for a sporty small to mid sized general use car. When pushed to higher performance levels, the tire gently says no thanks. No real faults, just not suitable for real sport use. The ride is quite stiff. Surprising when considering the limited sport potential. Doesn't hydroplane but feels like it will. Huge amount of tread grooves and sipes. Works in snow except for braking grip when compared to real snow tire. Long wearing. Perfect choice for base Mini Countryman or small Mercedes.
Vehicle: 2018 MINI John Cooper Works With Runflat Countryman ALL4 Miles Driven on Tires: 2,000 Driving Conditions: Combined Highway/City Location: PORT MOODY, BC Driving Style: Spirited
Taking Off-Road Tires On-Road - 2024 Test 9 – With Winter Update(31:03)
Twelve selections from the On-Road, Off-Road, and Rugged All-Terrain categories comprise this All-Terrain tire test to see how they stack up when it comes to daily driving. A/T tires excel off the beaten path, but what about the rest of the time? The popular aesthetics of this category lead to many using them on their daily drivers. So, what are you sacrificing by choosing these products for your concrete journeys? Noise, comfort, handling, safety, and winter performance are all considered when we test all-terrain off-road tires on the road!
Experience the Cooper Discoverer Road+Trail AT(01:10)
The Cooper Discoverer Road+Trail AT is for large SUVs and pickups. As a part of the On-Road All-Terrain category, the Discoverer Road+Trail AT is at home in urban environments as well as on dirt, gravel, and in light mud. It’s that off-road prowess, combined with on-road manners that defines the category and the Discoverer Road+Trail AT fits the bill.
CooperDiscoverer Road+Trail AT
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