The Dunlop SP Sport 4000 DSST CTT is an all-season, high-performance run-flat tire for passenger vehicles, known for its quiet ride and dry handling performance. Its key features include Self-Supporting Technology (DSST) and Combined Tire Technology (CTT).
Dunlop SP Sport 4000 DSST CTT tires are available from $225.23.
All-Season: All-Season tires are the versatile, year-round choice, designed to provide a balanced performance in a variety of conditions including dry highways, wet roads, and light snow. They offer a convenient single-set solution for drivers in moderate climates who want reliable handling without seasonal tire changes. While highly practical, they are a compromise and not a substitute for dedicated winter tires in heavy snow or icy conditions.
High Performance: High Performance tires are engineered for drivers who demand superior handling, agility, and road grip. They utilize advanced, softer rubber compounds and a stiffer internal structure to maximize road contact, resulting in exceptionally responsive steering, greater stability through corners, and shorter braking distances. This singular focus on dynamic capability typically comes at the expense of a shorter tread life and a firmer, more connected ride compared to standard touring tires.
Run Flat: Run Flat tires are engineered to allow continued, limited driving even after a puncture and a complete loss of air pressure. This extended mobility is achieved through different technologies, including heavily reinforced sidewalls that support the vehicle's weight, an internal support-ring system, or self-sealing liners that can plug punctures automatically. The primary benefit is the safety and convenience of reaching a service center without a roadside stop, often eliminating the need for a spare tire. Due to their specialized construction, they typically have a firmer ride, a higher replacement cost, and are often unrepairable after a run-flat event.
