Cooper Discoverer ST Maxx Tire Review & Rating

The Cooper Discoverer ST Maxx is engineered to be a tough off-road commercial grade traction tire that is also designed to provide exceptional on-road handling and enhanced ride comfort. Developed for drivers of trucks, large vans and SUV’s, the ST Maxx uses a 3-ply Armor Tek-3 construction for added strength and durability.

A tough new silica and natural rubber cut and chip resistant tread compound combined with the Armor Tek-3 construction creates a tire that better withstands the punishing impact of rocks and other materials against the sidewall and tread area. Cooper has added an angled ply construction to disperse the forces of impact that can severely damage any tire. The result is a tire that can take a beating and just keep on going, which numerous reviews from other drivers have confirmed as well.

Discoverer ST Maxx from Cooper Tires

The hybrid 4-5 rib tread design and other tread features give the ST Maxx more than capable on-road performance as well. The tread block pattern creates increased water evacuation from under the tread and better wet surface driving. This is another strength for this tire compared to the competition in this class.

Another point that we need to mention is how much more quiet this tire is compared to other similar tires. It will surprise when you first drive it at highway speeds and wonder why you aren’t hearing a lot of excess noise.

Cooper has also included the little extras that you would expect on an AT tire, like stone ejector ribs around the tread. Built into the lateral grooves, these ejector ribs quickly rid the tire of mud buildup, rocks, stones, and other debris. The ST Maxx carries an E load rating for those who use their trucks for heavy-duty load carrying.

Cooper has built this model with studdable lugs for those who live in an area where increased snow performance is a must. The ST Maxx is available in a range of 15-20 inch sizes and comes with a limited tread warranty.

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Pros

  • Exceptional off road performance on a variety of terrains  
  • Excellent street manners  
  • Wet handling is outstanding  
  • Very low road noise  
  • Long lasting treadlife  

Cons

  • Limited size range  

Overall Thoughts

Cooper has come up with a pretty good combination between an off-road tire that aggressively goes through all types of terrain, while also having the street manners to be driven on a regular basis. You would think the tread design and style of this tire would make it unacceptable for street or highway driving, but that’s not the case. This model is also surprisingly quiet for a tire in this class. Whether around town or on the highway, there is not a lot of excessive tire noise.

Treadlife is exceptional, and the Armor-Tek3 provides excellent rock puncture resistance when the tires are aired down. Our only wish is that Cooper would add more sizes to the lineup. Overall, if you are wanting a tire for rugged to severe off-road use, yet also need it to be driven on the street, the Discoverer ST Maxx is one of the best.

What Vehicles Will The Discoverer ST Maxx Fit?

Fits these vehicles and many others:

  • Chevrolet Silverado, C2500, Blazer, Express 2500 Van, Traverse  
  • Dodge Ram, Nitro, Durango  
  • Ford E-250 Econoline Van, F-150, Excursion, F-250  
  • GMC Sierra, Yukon, Jimmy, Savana  
  • Honda Passport  
  • Hummer H3  
  • Isuzu Rodeo  
  • Jeep Liberty, Grand Cherokee, Wrangler  
  • Kia Borrego  
  • Land Rover Defender  
  • Nissan NV2500, Xterra, Pathfinder, Frontier  
  • Suzuki Equator  
  • Toyota FJ Crusier  

Tire Sizes

15″

31X10.50R15LT 109Q C BLK
33X12.50R15LT 108Q C BLK
35X12.50R15LT 113Q C BLK

16″

LT215/85R16 115\112Q E BLK
LT235/85R16 120\116Q E BLK
LT255/85R16 123\120Q E BLK
LT225/75R16 115\112Q E BLK
LT245/75R16 120\116Q E BLK
LT265/75R16 123\120Q E OWL
LT285/75R16 126\123Q E OWL
LT315/75R16 127\124Q E BLK
LT305/70R16 124\121Q E BLK

17″

LT235/80R17 120\117Q E BLK
LT255/80R17 121\118Q E BLK
LT245/75R17 121\118Q E BLK
LT255/75R17 111\108Q C BLK
LT245/70R17 119\116Q E BLK
LT265/70R17 121\118Q E OWL
LT275/70R17 121\118Q E BLK
LT285/70R17 121\118Q E OWL
LT295/70R17 121\118Q E BLK
LT315/70R17 121\118Q D BLK
LT265/65R17 120\117Q E BLK
LT305/65R17 121\118Q E BLK
37X12.50R17LT 124P D BLK

18″

LT275/70R18 125\122Q E BLK
LT295/70R18 129\126Q E BLK
LT305/70R18 126\123Q E BLK
LT275/65R18 123\120Q E BLK
LT285/65R18 125\122Q E BLK
LT305/60R18 121\118Q E BLK

20″

LT275/65R20 126\123Q E BLK
LT305/55R20 121\118Q E BLK
35X12.50R20LT 121Q E BLK

Price Range

Prices on the Cooper ST Maxx range from approximately $190 and up. You may also find occasional rebates, discounts, coupons and special offers on this tire.

Click Here To Find The Current Lowest Prices On All Cooper Discoverer ST Maxx Tire Sizes

Warranty

Cooper provides a limited tread warranty on the ST Maxx. Tire uniformity is guaranteed for the first 2/32 inch of wear. Materials and workmanship are warranted for life and include free replacement during the first 25% of wear. Cooper follows that up with a prorated amount down to the last 2/32 inch of useable tread left on the tire.


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