Home|Tires

DISCOVERER® STT PRO™ P.O.R.

Our most extreme off-road biased 4x4 tire, with Armor Tek3® Construction for added durability . Made in the USA.

Show available sizes

Click to enlarge

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

DISCOVERER® STT PRO™ P.O.R.

3-2 Inner Tread Ribs
Unique hybrid 3-2 tread pattern reduces noise and increases stability.
Alternating shoulder lugs
Enhance traction in mud and soft surfaces.
Armor Tek3® construction
for added tire durability and puncture resistance.

Full specs

Tire specifications

There are 31 tire sizes available

Show specs for

More Information?

Tire size The tire size is made up of: Tread Width / Aspect Ratio / Rim Diameter. For example 245/50R18	Width 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	Load 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)	Sidewall (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)
LT35/12.50 R 22	35	12.50	117	Q	99		N/A	N/A	N/A	N/A
LT305/55 R 20	305	55	121	Q	99		N/A	N/A	N/A	N/A
LT295/65 R 20	295	65	129	K	68		N/A	N/A	N/A	N/A
LT275/65 R 20	275	65	121	Q	99		N/A	N/A	N/A	N/A
LT35/12.50 R 20	35	12.50	121	Q	99		N/A	N/A	N/A	N/A
LT305/60 R 18	305	60	121	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT305/70 R 18	305	70	126	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT275/65 R 18	275	65	123	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT275/70 R 18	275	70	125	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT37/13.50 R 18	37	13.50	124	K	68		N/A	N/A	N/A	N/A
LT315/70 R 17	315	70	121	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT305/65 R 17	305	65	121	Q	99		N/A	N/A	N/A	N/A
LT295/70 R 17	295	70	121	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT285/70 R 17	285	70	121	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT265/70 R 17	265	70	121	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT255/75 R 17	255	75	111	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT40/13.50 R 17	40	13.50	121	Q	99		N/A	N/A	N/A	N/A
LT37/12.50 R 17	37	12.50	124	K	68		N/A	N/A	N/A	N/A
LT37/13.50 R 17	37	13.50	121	Q	99		N/A	N/A	N/A	N/A
LT315/75 R 16	315	75	127	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT305/70 R 16	305	70	124	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT285/75 R 16	285	75	126	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT265/75 R 16	265	75	123	K	68	Raised White Lettering	N/A	N/A	N/A	N/A
LT245/75 R 16	245	75	120	Q	99		N/A	N/A	N/A	N/A
LT235/85 R 16	235	85	120	Q	99		N/A	N/A	N/A	N/A
LT215/85 R 16	215	85	115	Q	99		N/A	N/A	N/A	N/A
LT35/12.50 R 15	35	12.50	113	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT33/12.50 R 15	33	12.50	108	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT32/11.50 R 15	32	11.50	113	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT31/10.50 R 15	31	10.50	109	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A
LT30/9.50 R 15	30	9.50	104	Q	99	Raised White Lettering	N/A	N/A	N/A	N/A

Tire care

Tire inspection

Keep an eye out for potential problems that might affect your tires.

EU LABEL INFORMATION

What is the EU label on a tire and can I use it?

CORRECT TIRE PRESSURE

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