[Solid Center Rib] – This feature is crucial in enhancing directional stability and reducing road noise, providing a smooth and noise-free driving experience even on rough winter terrains.[Wide Shoulder Blocks] – Designed to improve cornering performance, these blocks also contribute to a quiet and comfortable ride, making long winter drives more enjoyable.RWS-677 STUDDABLE WINTER TIRETop-Notch Winter Tire for Maximum Traction and Superior PerformanceThe Rovelo RWS-677 is a meticulously crafted studdable winter tire, renowned for delivering unmatched traction in harsh winter weather conditions. Developed with a specially formulated compound, it stands out for its supreme performance even in extreme temperatures, providing drivers with reliability and peace of mind during the cold season.[Full Depth Multi-Directional Sipes] – Engineered to offer maximum grip in all directions while traversing on snow and ice, these sipes play a significant role in ensuring safety and control during winter months.185/65R15 Rovelo RWS-677 88T[Directional Tread Pattern] – This pattern is vital in maximizing traction and enhancing cornering and braking performance, ensuring a stable and secure drive in severe winter conditions.