The ExtremeContact DW (DW for Dry & Wet) is Continental Tire's Max Performance Summer tire developed for the drivers of sports cars, sports coupes and performance sedans. The ExtremeContact DW is designed to deliver good ride quality and serious performance on both dry and wet roads. Like all summer tires, the ExtremeContact DW is not intended to be driven in near-freezing temperatures, through snow or on ice.ExtremeContact DW tires feature an asymmetric design with chamfered tread blocks and a continuous, outboard notched intermediate rib to enhance responsiveness and cornering stability. Continuous center ribs reduce noise and provide constant rubber-to-road contact to control the longitudinal forces experienced when braking. A high void-to-tread ratio with open outboard lateral grooves, wide circumferential tread grooves and notched shoulder blocks on the inboard intermediate rib and shoulder help disperse water to enhance hydroplaning resistance and wet weather traction. The ExtremeContact DW features Tuned Performance Indicators - visible letters molded into the second rib from the outboard shoulder to alert drivers of the tire's performance levels. A visible "DW" indicates the tire has sufficient tread depth for dry and most wet road conditions and after the "W" has worn away, the remaining "D" indicates the tire has appropriate tread depth for dry conditions only.The tire's internal structure includes twin steel belts that are reinforced with spirally wound jointless nylon cap plies to provide long-term integrity under high speed conditions while reducing weight and helping to provide more uniform ride quality.