According to a report on GMAuthority.com, both the 2021 Chevrolet Tahoe Z71 and Suburban Z71 will be outfitted with Goodyear Wrangler TrailRunner AT tires sized at 275/60R20.
That means that both of these massive SUVs will come from the factory with beefy 33-inch tires that are off-road ready.
Goodyear Wrangler TrailRunner AT tires are built with large, interlocking tread blocks for added durability. The saw-tooth block edges are designed to help with traction on loose surfaces, while multi-angle sipes help improve grip on paved roads and on the trail.
Goodyear covers the Wrangler TrailRunner AT with a 55,000-mile tread life limited warranty.
As a point of comparison, the last generation Tahoe Z71 and Suburban Z71 featured more aggressive Goodyear Wrangler DuraTrac tires (265/65R18SL). The DuraTrac tires should be more capable in off-road conditions, but the Wrangler TrailRunner AT offer improved tread life and a quieter ride on paved roads.
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