Discoverer Stt Pro

For drivers who demand true off-road capability, the Cooper Discoverer STT Pro stands as one of the most aggressive mud-terrain performance tires available today. Designed for trucks and SUVs that regularly tackle harsh conditions, it offers the traction, control, and durability needed for remote trails and unforgiving landscapes. Whether you’re assembling a dedicated performance tires setup or a complete tire set for weekend adventures, the STT Pro is engineered to keep you moving when the terrain turns unpredictable.

The tire’s construction is rooted in serious off-road resilience. Its radial design incorporates LT-rated load capacities, deep tread elements, and a high-strength compound supported by Armor Tek3® Technology — delivering exceptional sidewall protection against cuts, tears, and sharp rock. Stone Armor™ Technology helps deflect debris, while Earth Diggers™ shoulder scoops enhance bite in sand, loose dirt, and rugged trail surfaces. For mud-heavy environments, Mud Slinger™ 2.0 channels continuously clear thick material from the tread, allowing the next lug to grab clean ground with every rotation.

Confidence continues on rocky climbs thanks to Rock Climber Sidewall™ Technology, which uses flex grooves and sidewall cleats to maintain traction when aired down on jagged terrain. Despite its off-road focus, the Discoverer STT Pro remains stable on pavement, offering dependable road manners for drivers who need a tire capable of handling both worksite travel and backcountry exploration. Available in sizes from 15" to 22", it fits a wide range of off-road-ready trucks and SUVs. Call 320-247-6160 for expert help. All orders ship free and financing is available at checkout.