Hankook Optimo H428 (OE). FEATURES AND BENEFITS: All weather traction; Enhanced controllability; High driving comfort levels; . OVERVIEW: The Hankook Optimo H428 (OE) is a touring, all season tire manufactured for passenger vehicles. This model is the original equipment tire of select vehicles.The tire promotes excellent all weather traction. The symmetric tread design, with the detailed siping pattern, and the all season silica-based compound increase the model's grip on dry, wet and winter weather road surfaces. The compound's silica materials maintain a firm grip on the road surface and keep the tire's weather flexibility throughout the year. The tread's constant road contact and the siping pattern's additional biting edges boost the grip on the road surface. The circumferential grooves prevent hydroplaning as they channel water and slush away from the tire's footprint. As a result, the tire guarantees an excellent all weather traction.The model ensures a comfortable drive. The tread design features a variable pitch sequence that lowers the road noise levels during the drive. The variable pitch phase shift creates a sound frequency that negates the road and tread pattern noise generated while the tires are in motion. In this manner, the road noise cannot reach the vehicle's cabin and it cannot dampen the passengers' driving comfort. The tire's internal structure features a polyester cord body that maintains the tire's optimal shape at all times. This allows the tire to increase the driving comfort levels significantly by lowering the road vibrations felt in the vehicle's cabin. The polyester cord body enables the tire's close road contact at all times, which absorbs the shock of driving and significantly boost the driving enjoyment.The Optimo H428 (OE) is also easy to control in various conditions. The tire guarantees a secure road contact thanks to its continuous center rib, which enables the tire to closely follow the road surface throughout its performance. The better contact with the road enhances the steering responsiveness and the driving stability. It makes the model faster and more precise in its response to the driver's commands, while it stabilizes the structure against the driving pressure affecting the model. The special shoulder tread block placement with the siping detail increases the cornering capability. They heighten the number of biting edges gripping the road surface during cornering, which significantly boosts the maneuver safety. This combination ensures a safer driving experience throughout the year. 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.