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Meant for use on passenger cars, the Triangle PCR TR777 is a winter tire that features computer-tuned sipes for improved acceleration, braking, and traction in winter weather conditions. Large shoulders put more rubber on the road to enhance cornering performance, and the PCR TR777's variable pitch tread design is tuned to minimize noise and create better contact with the road and improve road grip. A special rubber compound lowers rolling resistance to enhance fuel efficiency, and the PCR TR777 also features four wide grooves that drain water, slush, and melting snow out of the tread for consistent traction and to reduce the risk of aquaplaning.