The Cooper STT PRO is an extreme off-road tyre engineered for 4WD enthusiasts who need serious traction, toughness, and durability in the harshest terrain—without giving up on-road control.
Range of sizes available. View sizes.
The STT PRO is Cooper’s most advanced off-road tyre, developed and tested in some of Australia’s toughest conditions. Its Armor-Tek3 Construction adds a third angled ply to the carcass, increasing tear and impact resistance by over 2.5 times compared to standard 2-ply tyres. This structure reduces rubber gaps and helps protect against sharp rocks and rough terrain.
Flex Grooves built into the tread allow the tyre to flex over uneven surfaces, dampening impact forces for improved off-road grip and a more comfortable ride. Mud Scoops and Mud Release Dimples help eject packed mud and debris, preserving traction on slippery, loose surfaces.
Stone ejector ribs and angled groove walls work together to reduce stone retention and improve off-road grip. An advanced silica compound resists cutting and chipping while also enhancing wet traction for better control on sealed roads.
The STT PRO is made for drivers who push their vehicles hard in rugged conditions and expect a tyre that can take it—off the road and on it.
| Product Code | Size | Ply | Load Index | Speed Index | Type |
|---|---|---|---|---|---|
| 245197 | 31X10.50R15LT | - | 109 | Q | - |
| 245228 | 32X11.50R15 | - | 113 | Q | - |
| 245070 | 33X12.50R15 | - | 108 | Q | - |
| 245201 | 35X12.50R15 | - | 113 | Q | - |
| 245196 | LT235/85R16 | - | 120 | Q | - |
| 245200 | LT245/75R16 | - | 120 | Q | - |
| 245069 | LT265/75R16 | - | 123 | Q | - |
| 245195 | LT285/75R16 | - | 126 | Q | - |
| 245208 | LT305/70R16 | - | 124 | Q | - |
| 244997 | LT265/70R17 | - | 121 | Q | - |
| 245202 | LT285/70R17 | - | 121 | Q | - |
| 245207 | LT315/70R17 | - | 121 | Q | - |
| 245209 | LT275/65R18 | - | 123 | Q | - |
| 245206 | LT285/65R18 | - | 125 | Q | - |
| 245375 | LT305/60R18 | - | 126 | Q | - |
| 245226 | 35X12.50R20 | - | 121 | Q | - |
| 245204 | 305/55R20 | - | 121 | Q | - |
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