Discoverer S/T MAXX™

Fits Trucks/Pickups All-Season

Discoverer S/T MAXX™ is rated 4.4 out of 5 by 122.
  • y_2019, m_11, d_17, h_17
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.2
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_122
  • loc_en_US, sid_340_Trucks_Pickups, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_coopertire
  • bvseo_sdk, net_sdk, 3.2.0.0
  • CLOUD, getAggregateRating, 21ms
  • REVIEWS, PRODUCT

Standard Limited Warranty
Free 45-Day Test Drive
Studdable

The Discoverer S/T MAXX™ is designed for tough terrain, including rocks and gravel, with on-road stability and performance.

  • Tread design helps to prevent stone retention
  • Armor Tek3® Construction for added tire durability
  • Cut and Chip resistant tread compound/composition

M+S Rated

Features

Dry Performance

The tire’s ability to grip the road in dry conditions.

Wet Performance

The tire’s ability to grip the road in wet conditions.

Tread Wear

The wear rate of the tire.

Quiet Ride

The measure of how quiet a tire is while driving.

Handling

How the tire is able to respond to driving such as accelerating, braking, steering and turning.

Off Road

The tire’s ability to have grip on unpaved surfaces such as dirt, mud, sand, rock or gravel.

*When compared to other Cooper® tires.

Tire Design

  • Hybrid 4-5 Ribe Design

    Provides low tread pattern noise and even wear.

  • Dual-Draft and Non-Parallel Groove Walls

    Help reduce stone retention and resist cutting and chipping.

  • Stone Ejector Ribs

    Help discharge debris and resist stone retention.

Full Specs

Tire Size Service Description UTQG Load Range Sidewall Approved Rim Width Measured Rim Width Section Width Overall Diameter Tread Width Tire Weight Max Load Tread Depth (1/32")
30X9.50R15LT 104Q C BLK 6.5 - 8.5 7.5 9.3 29.69 7.68 44 1985 18.5
31X10.50R15LT 109Q C BLK 7 - 9 8.5 10.7 30.75 8.35 49 2270 18.5
33X12.50R15LT 108Q C BLK 8.5 - 11 10 12.6 32.76 9.88 58 2205 18.5
35X12.50R15LT 113Q C BLK 8.5 - 11 10 12.2 34.45 10.31 66 2535 18.5
LT215/85R16 115\112Q E BLK 5.5 - 7 6 8.4 30.31 6.22 38 2680 18.5
LT235/85R16 120\116Q E BLK 6 - 7.5 6.5 9.5 31.97 7.4 51 3042 18.5
LT255/85R16 123\120Q E BLK 6.5 - 8 7 10.2 32.8 8.15 58 3415 18.5
LT225/75R16 115\112Q E BLK 6 - 7 6 8.9 29.49 7.01 46 2680 18.5
LT245/75R16 120\116Q E BLK 6.5 - 8 7 9.7 30.67 7.8 49 3042 18.5
LT265/75R16 123\120Q E OWL 7 - 8 7.5 10.5 32.01 8.46 55 3415 18.5
LT285/75R16 126\123Q E OWL 7.5 - 9 8 11.7 32.91 9.29 62 3750 18.5
LT315/75R16 127\124Q E BLK 8 - 11 8.5 12.5 34.45 10 67 3860 18.5
LT245/70R16 118\115Q E BLK 6.5 - 7 7 9.8 29.53 7.52 47 2910 18.5
LT265/70R16 121\118Q E BLK 7 - 8.5 8 10.9 30.87 8.7 54 3195 18.5
LT305/70R16 124\121Q E BLK 8 - 9.5 9.5 12 33.07 10 63 3525 18.5
LT235/80R17 120\117Q E BLK 6 - 7.5 6.5 9 32.01 7.4 51 3085 18.5
LT255/80R17 121\118Q E BLK 6.5 - 8.5 7 10.2 32.8 8.15 58 3195 18.5
LT245/75R17 121\118Q E BLK 6.5 - 7.5 7 9.4 31.54 7.72 52 3195 18.5
LT255/75R17 111\108Q C BLK 6.5 - 8.5 7 10.2 31.77 8.15 55 2405 18.5
LT285/75R17 121\118Q E BLK 7.5 - 9.5 8 11.1 34.06 9.21 65 3195 18.5
LT245/70R17 119\116Q E BLK 6.5 - 8 7 9.6 30.71 7.6 49 3000 18.5
LT265/70R17 121\118Q E OWL 7 - 8.5 8 10.7 31.85 8.7 57 3195 18.5
LT275/70R17 121\118Q E BLK 7 - 8.5 8 11 32.17 8.86 59 3195 18.5
LT285/70R17 121\118Q E OWL 7.5 - 9 8.5 11.5 32.99 9.29 62 3195 18.5
LT295/70R17 121\118Q E BLK 7.5 - 10 8.5 12 33.23 9.8 64 3195 18.5
LT315/70R17 121\118Q D BLK 8 - 11 9.5 12.8 34.57 10 66 3195 18.5
LT265/65R17 120\117Q E BLK 7.5 - 9.5 8 10.7 30.51 8.66 53 3085 18.5
LT305/65R17 121\118Q E BLK 8.5 - 11 9 12.3 32.64 10 64 3195 18.5
37X12.50R17LT 124P D BLK 8.5 - 11 10 13.1 36.89 10.35 79 3525 18.5
LT265/70R18 124\121Q E BLK 7 - 9 8 10.7 32.87 8.62 58 3525 18.5
LT275/70R18 125\122Q E BLK 7 - 8.5 8 11.1 33.39 9.02 61 3640 18.5
LT295/70R18 129\126Q E BLK 7.5 - 10 8.5 12 34.25 9.69 67 4080 18.5
LT305/70R18 126\123Q E BLK 8.5 - 10 9 12.5 35.08 10 70 3750 18.5
LT265/65R18 122\119Q E BLK 7.5 - 9.5 8 10.7 31.81 8.62 56 3305 18.5
LT275/65R18 123\120Q E BLK 7.5 - 9 8 10.8 32.2 8.66 58 3415 18.5
LT285/65R18 125\122Q E BLK 8 - 10 8.5 11.8 32.8 9.29 63 3640 18.5
LT265/60R18 119\116Q E BLK 7.5 - 9.5 8 10.7 30.75 8.62 54 3000 18.5
LT285/60R18 122\119Q E BLK 8 - 10 8.5 11.8 31.65 9.49 61 3305 18.5
LT305/60R18 121\118Q E BLK 8.5 - 11 9 12.1 32.64 10 66 3195 18.5
LT275/65R20 126\123Q E BLK 7.5 - 9.5 8 11.1 34.17 8.98 65 3750 18.5
LT265/60R20 121\118Q E BLK 7.5 - 9.5 8 10.7 32.76 8.62 59 3195 18.5
LT285/60R20 125\122Q E BLK 8 - 10 8.5 11.3 33.62 9.17 63 3640 18.5
LT285/55R20 122\119Q E BLK 8 - 10 9 11.7 32.6 9.29 61 3305 18.5
LT295/55R20 123\120Q E BLK 8 - 10 9.5 12.1 32.95 10.2 65 3415 18.5
LT305/55R20 121\118Q E BLK 8.5 - 11 9.5 12.2 33.43 10.28 69 3195 18.5
35X12.50R20LT 121Q E BLK 8.5 - 11 10 12.5 34.65 10 69 3195 18.5
35X12.50R20LT 125\0Q F BLK 8.5 - 11 10 12.5 34.65 10 69 3640 18.5

Reviews

Rated 1 out of 5 by from Terrible I’ve had 5 sets of ST MAXX tires on 2 work trucks. I’ve had 2 blow outs, 2 twisted belts and 1 with what the dealer called a “rock bruise”. All occurred between 17,000 to 19,000 miles. For what they cost they are terrible for a work truck on the farm. Don’t waste your money.
Date published: 2019-11-12
Rated 5 out of 5 by from Last forever I have run these over 55,000 miles and they still have plenty of tread. Perform great on the highway and offroad. I don't go crazy offroad but do tow a camp trailer into decent spots and it holds its grip great. I am already looking to buy more when I need replacements.
Date published: 2019-10-03
Rated 5 out of 5 by from Quiet ride Put these on my 01 chevy 2500hd on 18 inch wheels. Load range E. A great quiet ride and excellent handling and grip. I have well over 65,000 miles on them and now due for another set. They did well in snow and mud and worn evenly, (I kept tire pressure, balance, rotation, and alignment correct, and also replaced worn suspension before it prematurely wore out tires.) The grip on icy terrain was fair. I run highway as well as offroad on some rough Pa access roads and only got stuck in mud once and that was with 4/32" of tread left. If you want a great semi aggressive all season tire that looks great and is quiet, this is your cookie! I'd definitely buy another set. I'm sold on Coopers. They last longer and have great features!
Date published: 2019-09-27
Rated 5 out of 5 by from Very happy Put these on my 97 F350 7.3 crew 4x4 working in the oil field. Great traction in all conditions got over 60k miles on them and tread is still at 9/32 well worth the money will buy again. No road noise of tread vibration.
Date published: 2019-09-12
Rated 5 out of 5 by from Good long wearing tire I was really impressed with the ST Maxx in 255/80-17 on my Tacoma. Drove them for 11,000 miles and were maybe 20-25% worn. They do everything well, good ride quality, good offroad and in mud, also for deep snow at slow wheel speeds. Packed snow traction when spinning wasn't amazing but with very little siping, that's reasonable.
Date published: 2019-09-12
Rated 5 out of 5 by from Traction in snow and ice is amazing got 60,000 miles on these bad boys. well worth the money.
Date published: 2019-09-05
Rated 3 out of 5 by from Good traction but wear out quickly Tires had good traction but only lasted 40,000 km. Very disappointed with the life of the tire. Wouldn’t recommend these tires.
Date published: 2019-08-25
Rated 5 out of 5 by from 4 Years and 35,000 miles I've run this tires hard off-road and these have not left me stranded. The outer lugs on all 5 tires (I rotate the spare in) have large chunks missing. 4 of the tires have sidewall cuts/slices, cosmetically only, did not penetrate Armor-Tek 3. 5th tire developed a slow leak (about 10lb of pressure loss in a weeks time) through a sidewalk slit. All the tire damage happened off-roading in volcanic rock in the Arizona Strip and Death Valley. As most off-roaders know volcanic rock is sharp and can tear tires too shreds. Despite this wear, the tires never let me down and I'm very happy with their performance. I need to replace these and I'm having a hard time deciding between ST Maxx or upgrading to the STT Pro. Thank you Cooper for a great tire.
Date published: 2019-08-18
  • y_2019, m_11, d_17, h_17
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.2
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_122
  • loc_en_US, sid_340_Trucks_Pickups, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_coopertire
  • bvseo_sdk, net_sdk, 3.2.0.0
  • CLOUD, getReviews, 2ms
  • REVIEWS, PRODUCT

Warranty

Reward

100 Discoverer S/T MAXX™