Kumho Ecsta V720 ACR. FEATURES AND BENEFITS: Summer weather traction; DOT approved racing tire; Enhanced controllability; High speed performance; . OVERVIEW: The Kumho Ecsta V720 ACR is a high performance, summer tire manufactured for passenger vehicles.This model is DOT approved for highway use, but it should not be used in wet conditions. This is a version of the Ecsta V720 which was manufactured for the 2016 Dodge Viper ACR (American Club Racing) vehicle as an original equipment tire.Summer weather traction is guaranteed with this tire model. The finer carbon black compound and the asymmetric tread design work together to greatly improve the dry weather traction. The carbon black compound effectively avoids heat build-up while the tires are in motion, thanks to the stronger rubber materials used. The asymmetric footprint optimizes the surface contact, which upgrades the grip in dry weather conditions. While this model features grooves on its tread area, it still should not be used in wet and rainy conditions, as it will not prevent hydroplaning.The reinforced structure and the heat-resistant compound allow the tire to lower the pressure off the tire. This combination allows the tire to securely perform at its utmost high speed capability. The structure's dual high-tensile steel belts and the spirally wound nylon reinforcement maintain the optimal shape under pressure, which increases the overall high speed durability. Furthermore, the tread design and carbon black compound ease the pressure off the tire, avoiding heat build-up along the tread area. The model ensures a secure performing power, which makes the tire perfect for dry weather racing.The Ecsta V720 ACR also enhances the controllability. The flat footprint, the asymmetric tread design, and the reinforced construction work together to optimize the tire's surface contact. As a result, the tire is able to upgrade the tire's steering responsiveness and driving stability. This allows the tire to greatly improve the steering response time and accuracy to the driver's commands, while the structure is secured against the driving pressure. The wider shoulder detail also helps to improve the cornering and maneuvering ability. This ensures the driver's control over the vehicle at all times. Manufacturers recommend changing tires every 10 years. As long as tires are properly stored before they are sold, the year of their manufacture will not shorten their service life.