Trac-Gard N774. FEATURES AND BENEFITS: All weather traction; Lengthened tread life; Enhanced durability; . OVERVIEW: The Trac-Gard N774 is an all season tire manufactured for lawn mowers and garden equipment.The tire offers excellent all weather traction and road gripping ability. The special knobby tread design with the high void ratio and the square shaped tread elements enhance the dry, wet and winter weather traction. The high void ratio channels water and dirt away from the tire's footprint and maintain the optimized road contact. The tread design's road contact ensures a safer year round driving experience.The model guarantees a longer lasting tread life. The special alternating square shoulder design evenly distributes the driving pressure along the tread area. The equally spread out force of acceleration, cornering and braking actively prevent irregular tread wear formations across the tread area. The lengthened tread life and usability makes the tire more cost efficient.The N774 has exceptional durability. The reinforced bias 4 ply structure maintains the optimal shape under the driving and load pressure affecting the tire during the drive. The better durability increases the model's load carrying ability, ensuring its heavy load withstanding capability. The bias structure guarantees a stronger structure, while at the same time it offers a smoother performance. This enables the tire to by used for residential and commercial applications.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 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.