K9 Rib. FEATURES AND BENEFITS: Various terrain traction; Enhanced controllability; All weather traction; . OVERVIEW: The K9 Rib is an all season tire made for lawn mowers and garden tractors.The ribbed tread design and the durable rubber compound improve the tires performance on versatile terrain surfaces. At the same time, the optimized grooves keep the footprint clean, by dispersing mud, snow, and rocks stuck between the tread elements. This increases the tires contact with driving surfaces, which boosts the tires forward motion on soft, loose, and uneven surfaces. These elements make this model perfect for on- and off-road performance.The model improves its controllability. The ribbed tread design maintains close surface contact, offering better steering responsiveness and driving stability. In other words, the steering response time is faster and more precise to the drivers commands, while the structure is secured against driving pressure. The outer ribs and the optimized tread elements upgrade cornering and maneuvering. As a result, the driver has full control over the vehicle and guarantees a safe driving experience.The K9 Rib enhances its year-round performance. The ribbed tread pattern follows the surface contact in all weather conditions, while the all season compound keeps the rubber flexible in changing temperatures. This combination increases the tires performance in dry, wet, and winter conditions. This combination makes this model perfectly safe throughout the year.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.