AT3 LT

Cooper/Mickey Thompson

The Discoverer AT3LT is Cooper's On-/Off-Road All-Terrain tire designed for the drivers of pickup trucks, work vehicles and full-size SUVs who need a tire that provides the rugged durability required to keep up with their active lifestyles.

Engineered to tackle dirt, gravel, mud and the urban jungle, the Discoverer AT3LT combines off-road prowess with agreeable on-road comfort and year-round traction, including in light snow.

Durable-Tread Technology combines a shred-resistant silica compound with the Discoverer AT3LT 's next-generation all-terrain tread pattern. Cooper's Even Wear Arc Technology optimizes the shape of the footprint for balanced pressure at the contact patch, improving handling and promoting even treadwear. The tread pattern is designed to aid dry traction, while Whisper Grooves between the outboard tread blocks help reduce noise throughout the tire's life. Stone ejector ledges help prevent punctures due to stone drilling, and the alternating scoop and cleat lugs in the shoulder are designed to provide grip on rock, in thick mud or loose soil. Deep, circumferential channels and wide, lateral notches improve hydroplaning resistance, while multiple zigzag sipes in the independent tread blocks create the biting edges needed for traction in slippery conditions. Snow Groove Technology uses saw-tooth block edges to trap snow in the tread for effective snow-to-snow traction.

The internal construction of the Discoverer AT3LT consists of a robust, two-ply polyester casing. A single-ply, nylon reinforcement above two high-strength steel belts further increases durability and handling response, along with providing high-speed stability.

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