Cooper
Discoverer® STT Pro™
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All-terrain
Does this tire fit your vehicle?
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Tire Features
Stone Armor™ Technology protects the tire from damage caused by sharp rock and debris
Mud Slinger™ 2.0 offer deep, wide trenches with additional notches that continuously clear thick mud from the tire.
Eath Diggers™ Technology digs deeper into mud, sand or dirt with large shoulder scoops and lugs.
Rock Climber Sidewall™ Technology offers climber cleats and flex grooves that grip jagged rock and power through mud.
Armor Trek3® Technology provides incredible tread and sidewall durability on tough terrain.
Warranties & Guarantees
Our satisfaction pledge gives you 45 days to decide whether to keep select tires or exchange them for a different set of tires.
Exclusions apply; see full warranty for details.
Learn MoreThis tire is eligible for the Standard Limited Warranty.
Exclusions apply; see full warranty for details.
Learn MoreFull Specs
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Load Range
C -
Load Index
111.0 -
Speed Rating
Q -
Measured Rim Width (in.)
7.0 -
Section Width (mm)
255 -
Revs Per Mile
650 -
Max Load (lbs)
2405 -
Max Inflation Pressure (PSI)
50 -
Outside Diameter (in.)
0.0 -
Tread Depth (in 32nds)
19 -
Tire Size
255/75R17 -
Approved Rim Width (in.)
6.5-8.5