Deestone D622 A78-13 ST. FEATURES AND BENEFITS: Trailer tire, NOT FOR LIGHT TRUCKS All weather traction Enhanced controllability Upgraded load durability. OVERVIEW: The Deestone D622 A78-13 ST is a touring, all season tire manufactured for trailers. This tire is NOT MEANT TO BE MOUNTED ON LIGHT TRUCKS, as its construction will not support the weight and performing style of such vehicles. It can ONLY BE MOUNTED ON TRAILERS.The tire promotes great all weather traction. The special durable compound and the detailed tread pattern enhance the models grip on dry, wet and winter weather road surfaces. The compound keeps its flexibility in various temperatures, while the tread design enhances the tires grip on the road surface throughout the year. The optimized siping pattern increases the number of biting edges gripping the road surface all year round. The zigzag circumferential grooves prevent hydroplaning by dispersing water and slush from below the tires footprint. This ensures the tires secure all weather performance.The tread pattern improves the tires controllability. The flat symmetric footprint with the continuous center rib maintains the tires contact with the road surface at all times. The better road contact enhances the steering responsiveness and the driving stability significantly. In this manner, the tire secures its structure against the driving and load pressure, while its steering becomes faster and more precise in its response to the towing vehicles instructions. The upgraded control guarantees a secure driving experience in different weather.The D622 A78-13 ST features a reinforced construction. The bias ply structure is further strengthened with a durable nylon casing that maintains the tires ideal shape. Even under the load and driving pressure, the tire does not deform. The optimized tire shape and the stronger construction enable the tire to carry and withstand heavy loads with ease, which enhances its load handling capability and power. The better load durability guarantees a durable performance.This is a bias ply or diagonal tire. Due to the tire’s internal construction and size, it is possible that the tire will look deformed. Smaller diagonal 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 tires possible deformation, it does not represent the specific tire model, size, tread pattern and application. This specific tire model features a BIASED ply construction.