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S/TMAXX

Heavy Duty All-Terrain

50% Road & Sand, 50% Dirt & Mud

Developed after three years of testing in Australia’s outback to give you the toughest all-terrain performance.

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Features

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Enhanced Buttress Design Provides additional off-road tr...

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Stone Ejector Ribs Stone ejector ribs and varied channel...

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Silica And Natural Rubber Compound The S/Tmaxx features ...

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Armor-Tek3 Construction On top of high tensile construct...

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Tyre diagram
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Micro Gauge™ Siping Reduce cutting and chipping whilst e...

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Y-Block Tread Pattern Y-Block Tread Pattern and optimise...

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Enhanced Buttress Design

Provides additional off-road traction and a rugged appearance, giving you abrasion resistance and sidewall protection.

Stone Ejector Ribs

Stone ejector ribs and varied channels resist damage and avoid drilling, giving you resistance to cutting and chipping.

Silica And Natural Rubber Compound

The S/Tmaxx features a uniquely formulated compound of silica mixed with natural rubber to give you reduced cut and chip in off-road conditions and improved wet traction.

Armor-Tek3 Construction

On top of high tensile construction, the S/Tmaxx features Armor-Tek3 - an additional 3rd ply on an 8° angle. Unique Armor-Tek3 construction is engineered to give you over 2.5 times more tear and impact damage resistance by reducing the rubber gaps by 50% to give you peace of mind when driving off-road. *Compared to standard 2-ply tyres.

Micro Gauge™ Siping

Reduce cutting and chipping whilst enhancing traction in wet, soft surfaces, giving you enhanced stability and longevity.

Y-Block Tread Pattern

Y-Block Tread Pattern and optimised draft angles maximise on and off-road grip, giving you remarkably low noise for a tyre of its class.

Customer reviews

Land Cruiser

Kel Crisafulli Qld
Cooper tyres are by far the best tyres I've used
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Nissan Patrol

Tristan Lewis Qld
I had the traction and confidence to finish the whole track with no damage. Thanks Cooper!
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Mitsubishi Triton

Darren Hodgson -
If it was not for my Cooper STmaxx tyres I reckon I would have needed rescuing. But instead I was the recovery vehicle for my mates. To their displeasure.
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Available sizes

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Size Approved Rim Width OD MM Load index KMS Warranty Tread Depth (MM) Actions
Light Truck Construction
30/9.5R15 6.5-8.5 744 104Q 70,000 14.7
31/10.5R15 7.0-9.0 781 109Q 80,000 14.7
33/12.5R15 8.5-11.0 832 108Q 80,000 14.7
35/12.5R15 8.5-11.0 875 113Q 80,000 14.7
245/70R16 6.5-7.0 750 118Q 80,000 14.7
265/70R16 7.0-8.5 784 121Q 80,000 14.7
305/70R16 8.0-9.5 840 124Q 80,000 14.7
225/75R16 6.0-7.0 749 115Q 60,000 14.7
245/75R16 6.5-8.0 779 120Q 60,000 14.7
265/75R16 7.0-8.0 813 123N n/a 14.7
285/75R16 7.5-9.0 836 126Q 80,000 14.7
315/75R16 8.0-11.0 875 127Q 80,000 14.7
235/85R16 6.0-7.5 812 120Q 60,000 14.7
255/85R16 6.5-8.0 833 123Q 80,000 14.7
37/12.5R17 8.5-11.0 937 124P 80,000 14.7
265/65R17 7.5-9.5 775 120Q 80,000 14.7
245/70R17 6.5-8.0 780 119Q 80,000 14.7
265/70R17 7.0-8.5 809 121Q n/a 14.7
275/70R17 7.0-8.5 817 121Q 80,000 14.7
285/70R17 7.5-9.0 838 121Q 80,000 14.7
315/70R17 8.0-11.0 878 121Q 80,000 14.7
245/75R17 6.5-7.5 801 121Q 80,000 14.7
265/60R18 7.5-9.5 781 119Q 80,000 14.7
285/60R18 8.0-10.0 804 122Q 80,000 14.7
265/65R18 7.5-9.5 808 122Q 80,000 14.7
275/65R18 7.5-9.0 818 123Q 70,000 14.7
285/65R18 8.0-10.0 833 125Q 70,000 14.7
275/70R18 7.0-8.5 848 125Q 70,000 14.7
285/55R20 8.0-10.0 828 122Q 80,000 14.7
285/60R20 8.0-10.0 851 125Q 60,000 14.7
275/65R20 7.5-9.5 868 126Q 70,000 14.7