The Discoverer® S/T MAXX™ P.O.R. is designed for demanding off-road environments, while also offering on-road traction, stability and low noise characteristics. Made in the USA.
Show available sizes
Find a store
Click to enlarge
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.
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


  1. Tough terrain hybrid 4-5 rib design
    Provides even wear and a low tread pattern noise.
  2. Dual-draft and non-parallel groove walls
    Help to resist against cutting and chipping.
  3. Stone ejector ribs
    Aid the discharge of debris.
Full specs

Tire specifications

There are 23 tire sizes available
More Information?
Tire size
The tire size is made up of: Tread Width / Aspect Ratio / Rim Diameter. For example 245/50R18
The tire width is a millimetre measurement for the width of the tire. For example 245 mm when reading a tire size of 245/50R18
Aspect ratio
The aspect ratio is the percentage of the height of the sidewall compared to the tread width. For example 50% when reading a tire size of 245/50R18
The maximum load a tire can carry is defined as a ‘Load Index’. Please refer to https://www.coopertire.co.uk/tire-safety-tips/correct-loading/
Speed rating
The Speed Symbol is shown as a letter and indicates the maximum speed. Please refer to https://www.coopertire.co.uk/tire-safety-tips/correct-loading
Max speed
(cannot find text: coopertires_sites:site.tooltips.max_speed)
(cannot find text: coopertires_sites:site.tooltips.sidewall)
Roll resistance
Rolling Resistance is the main key factor in measuring the energy efficiency of a tire and has direct influence on the fuel consumption of a vehicle. A set of tires of the green class “A” compared to a “G” class can reduce fuel consumption by 7.5% of a passenger car; even more for trucks.
Wet grip
Basis for wet grip is the absolute stopping distance when driving 80km per hour. Between each class, there are 3-6 metres difference in braking distance.
Noise level
The drive by noise is quoted as an absolute value in decibel and as a 3 classes sound wave symbol.
EU label
(cannot find text: coopertires_sites:site.tooltips.eu_label)
LT305/55 R 2030555121Q160Black SidewallN/AN/AN/AN/A
LT265/60 R 2026560121Q160Black SidewallN/AN/AN/AN/A
LT35/12.50 R 203512.50121Q160Black SidewallN/AN/AN/AN/A
LT265/60 R 1826560119Q160Black SidewallN/AN/AN/AN/A
LT315/70 R 1731570121Q160Black SidewallN/AN/AN/AN/A
LT295/70 R 1729570121Q160Black SidewallN/AN/AN/AN/A
LT285/70 R 1728570121Q160Black SidewallN/AN/AN/AN/A
LT285/75 R 1728575121Q160Black SidewallN/AN/AN/AN/A
LT275/70 R 1727570121Q160Black SidewallN/AN/AN/AN/A
LT265/65 R 1726565120Q160Black SidewallN/AN/AN/AN/A
LT265/70 R 1726570121Q160Black SidewallN/AN/AN/AN/A
LT255/75 R 1725575111Q160Black SidewallN/AN/AN/AN/A
LT255/80 R 1725580121Q160Black SidewallN/AN/AN/AN/A
LT245/70 R 1724570119Q160Black SidewallN/AN/AN/AN/A
LT245/75 R 1724575121Q160Black SidewallN/AN/AN/AN/A
LT235/80 R 1723580120Q160Black SidewallN/AN/AN/AN/A
LT265/70 R 1626570121Q160Black SidewallN/AN/AN/AN/A
LT245/70 R 1624570118Q160Black SidewallN/AN/AN/AN/A
LT245/75 R 1624575120Q160Black SidewallN/AN/AN/AN/A
LT235/85 R 1623585120Q160Black SidewallN/AN/AN/AN/A
LT225/75 R 1622575115Q160Black SidewallN/AN/AN/AN/A
LT31/10.50 R 153110.50109Q160Black SidewallN/AN/AN/AN/A
LT30/9.50 R 15309.50104Q160Black SidewallN/AN/AN/AN/A
Tire care

Tire care

Tire inspection
Keep an eye out for potential problems that might affect your tires.
What is the EU label on a tire and can I use it?
Driving on any tire that does not have the correct inflation pressure is dangerous.
Tire safety tips
How to get the most out of your tires.
Speak to an expert