BKT Trac Master. FEATURES AND BENEFITS: Improved traction; Enhanced load capacity; Self-cleaning tread design; . OVERVIEW: The BKT Trac Master is an all season tire manufactured for lawn mowers, smaller garden tractors, agricultural machinery and other garden equipment vehicles.The tire promotes great traction. The wider footprint's lug placement upgrades the tire's grip on the various terrain surfaces. The special lug placement enhances the traction and surface gripping ability, enabling the tire's aggressive traction throughout its performance. While this ensures the tire's forward motion at all times, it makes the tire unsuitable for grassy surfaces, as the stronger traction can damage the turf and grass field.The model's wider footprint allows the tire to increase its controllability throughout the drive. The wide footprint with the aggressive tread pattern enhances the steering responsiveness and the driving stability as it keeps the tire's surface contact. In this manner, the steering becomes faster and more precise in its responsiveness, while the structure is stabilized against the driving pressure affecting the model. This enables the driver to confidently maneuver the vehicle on various terrain surfaces.The Trac Master offers first-rate durability. The heavy duty internal structure manages to increase the tire's strength. The reinforced construction maintains the ideal tire shape under the load and driving pressure affecting the model. The stronger structure also prevents damage to the tire's casing. It avoids punctures, cuts and impact damage from shortening the tire's usability and power, guaranteeing a secure 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.