# Zmax Winter GL868 – Advanced Winter Tire Performance ## Engineered for Superior Winter Grip and Control The Zmax Winter GL868 features an asymmetric tread pattern designed to deliver balanced performance in harsh winter conditions. The outer side utilizes a densely packed block structure to enhance cornering stability and handling precision, while the inner side incorporates wide circumferential grooves that efficiently channel water, slush, and snow away, reducing the risk of hydroplaning and improving traction. ## Optimized Tread Design for Snow and Ice Equipped with zigzag longitudinal grooves on both sides, the tire creates a biting edge effect that actively compresses and ejects snow, enhancing grip on snowy roads. The continuous center ribs are segmented to maintain stability and responsiveness, while the strategic arrangement of 3 to 4 wide grooves ensures effective evacuation of debris for consistent road contact. ## Intelligent Sipe Distribution for All-Winter Traction The 3D zigzag sipe technology is strategically distributed across the tread—denser on the inside for maximum grip on ice and snow, and slightly sparser on the outside to support steering control and durability. This balanced siping layout improves block rigidity where needed without sacrificing flexibility in cold temperatures. ## Cold-Weather-Optimized Rubber Compound A silica-enhanced compound allows the tread to remain flexible and adhesive even in extreme cold, down to -40°C. This ensures the tire maintains a larger footprint and stronger grip on icy or wet surfaces, delivering reliable braking and acceleration performance throughout the winter season..