STT Armor-Tek3

20% Road & Sand, 80% Dirt & Mud
The new STT is designed for the 4WDriver who wants a tyre with the grip and puncture resistance to drive the most serious of off-road applications.

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ARMOR-TEK3 CARCASS CONSTRUCTION

It's the heavy duty carcass that makes the new STT so special. In a normal 4WD tyre there are rubber gaps between the sidewall cords. The rubber gaps are the weakest point of the tyre. A nail, a stake or sharp outback grass can push against the sidewall cord, deflect off and penetrate through the weakest point, (the rubber) and you get a flat. What Cooper has done is reduce the rubber gaps by taking its 2 ply STT and added a third ply on an angle (an 8 degree angle). It's called Armor-Tek3 technology and it's unique to Cooper.

THE STT IS NOW 25% EVEN STRONGER IN THE SIDEWALLS AND STILL 2.5 TIMES MORE RESISTANT TO TEARING!

The Cooper STT boasts even more strength than before due to an increase in denier cord strength used in the carcass construction.  Cooper increased the denier cord strength from 1500 to 2000 denier. The STT now has 2 ply's at 2000 denier and the third ply (angled Armor-Tek3 ply) is 1000 denier. That's a whopping 25% increase in carcass strength!

CUT & CHIP RESISTANT

Cooper has made the new STT even more damage resistant with a specially developed tread compound to help reduce the cutting, tearing and chunking commonly found with extended outback use.

SUPER TRACTION TREAD

A super traction tread employs a combination of features including deep sidewall lugs, notched and scalloped shoulder lugs, and a unique centre traction zone to create a bold, aggressive tyre. Sipes (tiny cuts in the tread blocks that squeeze out water from under the tyre) provide excellent wet bitumen grip for an aggressive traction tyre.

LIGHT TRUCK CONSTRUCTION
Size Approved Rim Width Ply OD mm Load Index
15" 30/9.50R15 6.5-8.5 6 W 754 104Q
31/10.50R15 7.0-9.0 6 W 781 109Q
32/11.50R15 8.0-10.0 6 W 807 113Q
33/12.50R15 8.5-11.0 6 W 832 108Q
35/12.50R15 8.5-11.0 6 W 883 113Q
16" 225/75R16 6.0-7.0 10 W 750 115Q
245/75R16 6.5-8.0 10 B 780 120Q
265/75R16 7.0-8.0 10 W 813 123Q
285/75R16 7.5-9.0 10 W 841 126Q
305/70R16 8.0-9.5 10 W 840 124Q
235/85R16 6.0-7.5 10 B 808 120Q
17" 245/70R17 6.5-8.0 10 B 780 119Q
265/70R17 7.0-8.5 10 W 810 121Q
285/70R17 7.5-9.5 8 W 838 121Q
35/12.50R17 8.5-11.0 10 W 883 121Q
18" 325/65R18 9.0-12.0 10 B 883 127N

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