As an all-terrain tire, the Cooper Discoverer® A/T3 Sport 2™ offers an effective balance between on-road stability and off-road capability. 3PMSF and M+S rated.
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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. All-terrain, all-season capability
    3PMSF and M+S approved for harsh winter conditions and slippery surfaces.
  2. Proven off-road performance
    Robust tread design and new compound technology provide excellent cut and chip resistance.*
  3. Improved sidewall protection
    New EPDM compound guards against the effects of ozone and UV degradation

    *Testing carried out over 8,000 miles on specifically cut flint roads at the Cooper Tire & Vehicle Test Center in Pearsall, Texas, USA.
Full specs

Tire specifications

There are 33 tire sizes available
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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
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Rolling Resistance
Rolling Resistance
5 classes from E (least efficient) to A (most efficient)
Effect may vary among vehicles and driving conditions, but the difference between a E and an A class for a complete set of tyres could reduce fuel consumption by up to 7.5 %* and even more in case of trucks. Fuel savings and road safety depend heavily on the behavior of drivers and eco‐driving can significantly reduce fuel consumption.
Wet grip
Wet Grip
5 classes from E (longest braking distances) to A (shortest braking distances)
Effect may vary among vehicles and driving conditions, but in the case of full braking, the difference between a E and an A class for a set of four identical tyres could be up to 30% shorter braking distance (e.g. for a typical passenger car driving at 80 km/h speed this could be up to 18m shorter braking distance)*. Stopping distances must always be respected.”
Noise level
Noise Level
In addition to the noise value in Decibel dB(A) a letter (from A to C) displays whether the tyre external rolling noise performance is above the United Nation Reg 117 mandatory limit value
(Class C = noisier tyre), the tyre noise is higher than the UN limit
(Class B = average tyre) or more than 3 dB below the limit value
(Class A = low noise tyre).
NB: The tyre external rolling noise is not entirely correlated to vehicle interior noise.
EU label
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285/50 R 20 XL28550116H130CC75
275/45 R 20 XL27545110H130DC73
275/55 R 20 XL27555117T118Outlined White LetteringCC73
275/60 R 20 XL27560116T118Outlined White LetteringCC73
255/55 R 19 XL25555111H130CC73
285/60 R 18 XL28560120T118CC75
275/65 R 1827565116T118Outlined White LetteringCC72
265/60 R 1826560110T118Outlined White LetteringDC72
265/65 R 1826565114T118Outlined White LetteringCC72
265/65 R 1726565112T118Outlined White LetteringDC72
265/70 R 1726570115T118Outlined White LetteringCC72
255/65 R 1725565110T118Outlined White LetteringCC72
245/65 R 17 XL24565111T118Outlined White LetteringCC72
245/70 R 1724570110T118Outlined White LetteringDC71
235/65 R 17 XL23565108T118Outlined White LetteringCC72
235/70 R 17 XL23570111T118CC72
265/70 R 1626570112T118Outlined White LetteringDC72
265/75 R 1626575116T118Outlined White LetteringCC72
255/70 R 1625570111T118Outlined White LetteringCC72
245/70 R 16 XL24570111T118Outlined White LetteringCC72
235/70 R 1623570106T118Outlined White LetteringDC71
225/70 R 1622570103T118Outlined White LetteringDC71
225/75 R 1622575104T118Outlined White LetteringDC71
215/70 R 1621570100T118Outlined White LetteringDC71
205 R 16C205N/A110S112DB72
205/80 R 16 XL20580104T118DC71
265/70 R 1526570112T118Outlined White LetteringDC72
255/70 R 1525570108T118Outlined White LetteringDC72
235/75 R 15 XL23575109T118Outlined White LetteringDC72
225/70 R 1522570100T118Outlined White LetteringDC72
215/80 R 1521580102T118DC71
205/70 R 152057096T118DC71
195/80 R 15 XL19580100T118DC71
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