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The STT PRO is the most advanced extreme off-road tyre Cooper Tires offers, providing remarkable off-road performance without sacrificing on-road traction. Tested in the tough Australian Outback, it is ready for anything you throw at it.

Key Features

  • Flex Grooves allow the tyre to flex, dampening the impact generated by inconsistent terrain, giving you more flexibility, better off-road grip and a smoother ride.
  • Mud Scoops and Mud Release Dimples create air pockets to release mud and debris from the tread, giving you exceptional all-surface traction.
  • Raised Rubber Ribs and Angled Groove Walls work together to eject stones from the tread, reducing stone retention and providing more grip off-road.
  • On top of high tensile body plies, the STT PRO features Armor-Tek3 Construction - an additional third 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.
  • Advanced Silica Compound, formulated with the optimum content of chemically-coupled silica. This helps reduce cutting and chipping off-road while improving wet traction on-road.

Performance Category: Off Road 4WD

SizeLoad IndexSpeed IndexOverall Diameter
30x9.5R15 104Q104Q762
31x10.5R15 109Q109Q787
32x11.5R15 113Q113Q813
33x12.5R15 108Q108Q838
35x12.5R15 113Q113Q889
235/85R16 120Q120Q806
245/75R16 120Q120Q774
265/75R16 123Q123Q804
285/75R16 126Q126Q834
305/70R16 124Q124Q833
315/75R16 127Q127Q879
37x12.5R17 124Q124Q940
265/70R17 121Q121Q803
285/70R17 121Q121Q831
315/70R17 121Q121Q873
275/70R18 125Q125Q842
275/65R18 123Q123Q815
305/70R18 126Q126Q884
305/55R20 121Q121Q844

Tyre Enquiry

  • Tyre Brand Cooper
  • Tyre Name STT PRO
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