AT3 4S

Cooper/Mickey Thompson

The Discoverer AT34S is Cooper's On-/Off-Road All-Terrain tire designed for the drivers of pickup trucks, crossovers and full-size SUVs looking for a tire that blends the off-road grip they need with the on-road comfort they demand. Engineered to deliver traction on any surface it may encounter, the Discoverer AT34S combines on-road manners with off-road capability and provides confident light snow traction that meets the tire industry's severe snow service rating requirements and earns the three-peak mountain snowflake (3PMSF) symbol.

Utilizing Adaptive-Traction Technology, the Discoverer AT34S combines a silica-based tread compound into the Secure-Grip all-terrain pattern. The open, five-rib design is engineered to provide wet and dry performance, in addition to off-road capability. The circumferential, Aqua Vac Channels and wide, lateral notches help evacuate water from the contact patch and resist hydroplaning. Micro-Gauge ZigZag sipes create biting edges for added traction in slippery conditions while retaining tread block stability for dry traction and handling. Snow Groove Technology utilizes saw-tooth block edges in the outboard grooves to retain snow in the tread pattern for snow-on-snow traction.

The internal construction of the Discoverer AT34Sconsists of a durable, 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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