Airloc Sawtooth Rib. FEATURES AND BENEFITS: Versatile terrain traction; Enhanced controllability; Upgraded load durability; . OVERVIEW: The Airloc Sawtooth Rib is an all season tire manufactured for lawn mowers and other garden equipment vehicles.The tire promotes great different surface traction. The special sawtooth elements of the footprint greatly upgrade the soft and loose terrain grip, boosting the forward motion on versatile surface conditions. These tread elements boost the turf terrain and on-road applications, guaranteeing a safer driving experience. As a result, the tire promotes great traction no matter what surface conditions it is driven on.The optimally ribbed tread design greatly enhances the surface contact at all times. These tread designs greatly improve the steering responsiveness and driving stability. As a result, the tire promotes a faster and more precise steering response to the driver's commands. It also secures the structural stability under the driving pressure affecting the tire. This combination allows the tire to greatly increase the driver's control over the vehicle throughout the performance.The Sawtooth Rib pattern greatly improves its load durability. The model features a bias-ply structure in order to enhance the load capacity. The bias plies maintain the ideal tire shape under the load and driving pressure. As the tire does not deform, it is able to greatly upgrade the model's overall load carrying and withstanding ability as well. This results in a safer, heavy-duty driving experience.This is a bias ply tire. Due to the tire's internal construction and size, it is possible that the tire will look deformed. Smaller bias ply tires do not have reinforced constructions that can keep the tire from deforming. The bias construction and the small tire's non-reinforced internal structure allow the tire to fold in when it is deflated or not properly inflated. This is not constructional damage or an issue; it is a normal occurrence with such tires. In such cases, the tire needs to be mounted and inflated to the proper PSI or, in some instances, an inner tube needs to be added. The proper PSI and the inner tube are able to maintain the tire's ideal shape, preventing the bias plies from looking deformed. This ensures their performing safety and durability. The photo is a representation of the tire's possible deformation, it does not represent the specific tire model, size, tread pattern and application. This specific tire model features a BIASED ply construction. 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.