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DISCOVERER® AT3 4S™

The Discoverer AT3 4S™ with Adaptive-Traction Technology™ grips the surface, rocky or smooth, under the most severe weather, hot or cold, wet or dry.

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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® AT3 4S™

Snow groove technology
Patented saw-tooth technology traps snow in the tread to provide superior snow-on-snow traction.
Secure-grip™ all-terrain design
Specifically designed 5-rib all-terrain pattern provides greater off-road driving capability and improved wet/dry traction.
Micro-gauge™ zigzag sipes
Smaller gauge sipes in all tread blocks provide increased vehicle stability and control, while reducing stone retention and drilling. Zigzags create more biting edges for optimal wet/dry traction.

Full specs

Tire specifications

There are 41 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	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.
285/45 R 22 XL	285	45	114	H	130		E	C	75
275/45 R 22 XL	275	45	112	H	130		E	C	73
275/55 R 20 XL	275	55	117	T	118	Outlined White Lettering	E	C	73
275/60 R 20	275	60	115	T	118	Outlined White Lettering	E	C	72
265/50 R 20 XL	265	50	111	T	118	Outlined White Lettering	E	C	73
255/50 R 20 XL	255	50	109	H	130		E	C	73
275/65 R 18	275	65	116	T	118	Outlined White Lettering	E	C	72
265/60 R 18	265	60	110	T	118	Outlined White Lettering	E	C	72
265/65 R 18	265	65	114	T	118	Outlined White Lettering	E	C	72
265/70 R 18	265	70	116	T	118	Outlined White Lettering	E	C	75
255/70 R 18	255	70	113	T	118	Outlined White Lettering	E	C	72
P285/70 R 17	285	70	117	T	118	Outlined White Lettering	E	C	74
265/65 R 17	265	65	112	T	118	Outlined White Lettering	E	C	72
265/70 R 17	265	70	115	T	118	Outlined White Lettering	E	C	72
255/65 R 17	255	65	110	T	118	Outlined White Lettering	E	C	72
255/70 R 17	255	70	112	T	118	Outlined White Lettering	E	C	72
255/75 R 17	255	75	115	T	118	Outlined White Lettering	E	C	72
245/65 R 17 XL	245	65	111	T	118	Outlined White Lettering	E	C	72
245/70 R 17	245	70	110	T	118	Outlined White Lettering	E	C	71
235/60 R 17	235	60	102	T	118	Outlined White Lettering	E	C	71
235/65 R 17 XL	235	65	108	T	118		E	C	72
235/70 R 17 XL	235	70	109	T	118	Outlined White Lettering	E	C	72
235/75 R 17	235	75	109	T	118	Outlined White Lettering	E	C	71
225/65 R 17	225	65	102	H	130		E	C	71
215/65 R 17	215	65	99	T	118	Outlined White Lettering	E	C	71
265/70 R 16	265	70	112	T	118	Outlined White Lettering	E	C	72
265/75 R 16	265	75	116	T	118	Outlined White Lettering	E	C	72
255/70 R 16	255	70	111	T	118	Outlined White Lettering	E	C	72
245/70 R 16 XL	245	70	111	T	118	Outlined White Lettering	E	C	72
245/75 R 16	245	75	111	T	118	Outlined White Lettering	E	C	71
235/70 R 16	235	70	106	T	118	Outlined White Lettering	E	C	71
235/75 R 16	235	75	108	T	118	Outlined White Lettering	E	C	71
225/70 R 16	225	70	103	T	118	Outlined White Lettering	E	C	71
225/75 R 16	225	75	104	T	118	Outlined White Lettering	E	C	71
215/70 R 16	215	70	100	T	118	Outlined White Lettering	E	C	71
265/70 R 15	265	70	112	T	118	Outlined White Lettering	E	C	72
265/75 R 15	265	75	112	T	118	Outlined White Lettering	E	C	72
255/70 R 15	255	70	108	T	118	Outlined White Lettering	E	C	72
235/75 R 15 XL	235	75	109	T	118	Outlined White Lettering	E	C	72
235/75 R 15	235	75	105	T	118	Outlined White Lettering	E	C	71
225/70 R 15	225	70	100	T	118	Outlined White Lettering	E	C	71

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