Dunlop SP Sport Maxx 050 DSST CTT Run-Flat Summer Ultra-High Performance Tire

The Dunlop SP Sport Maxx 050 DSST® CTT™ is an ultra-high performance summer run-flat tire engineered for luxury and sport passenger vehicles. Combining maximum dry and wet grip, confident high-speed stability, and a refined cabin experience, this tire line represents Dunlop's most advanced fusion of run-flat capability and summer performance technology — and serves as original equipment on select luxury and performance vehicles.

At the foundation of every SP Sport Maxx 050 DSST CTT is Dunlop Self-Supporting Technology (DSST®), a patented reinforced sidewall construction that allows continued driving on a flat tire for up to 50 miles at 50 mph under normal conditions. This eliminates the need for a spare tire and keeps drivers safely mobile after a puncture or sudden air pressure loss — without compromising ride quality or handling.

Complementing the run-flat foundation is Combined Tire Technology (CTT™), a three-rib tread architecture that optimizes surface contact, reduces overall tire weight, and creates a rounder cavity shape. The result is sharper steering responsiveness, improved driving stability, and elevated ride comfort across all available sizes.

The summer performance tread compound is heat-resistant by design, preventing excessive temperature buildup during sustained highway driving. Circumferential grooves efficiently channel water away from the contact patch to resist hydroplaning, while the asymmetric tread pattern and stiff shoulder blocks deliver precise, confident handling in both dry and wet conditions.

Key Features:

• DSST® Run-Flat Technology — Patented sidewall construction supports continued driving up to 50 miles at 50 mph after complete air pressure loss
• Combined Tire Technology (CTT™) — Three-rib tread pattern reduces tire weight and creates a rounder cavity shape for improved steering response, driving stability, and ride comfort
• Hybrid Kevlar® Nylon Band — Maintains tire structure at high speeds, delivering an ideal balance of performance, ride comfort, and noise reduction
• Noise Shield Technology — Select sizes feature sound-absorbing foam bonded to the inner liner to minimize road noise transmitted to the cabin
• Heat-Resistant Summer Compound — Engineered to prevent heat buildup across the tread area for consistent grip and durability at highway speeds
• Circumferential Grooves — Efficiently evacuate water from the footprint to reduce hydroplaning risk in wet conditions
• Asymmetric Tread Pattern — Stiff shoulder blocks deliver sharp, precise handling in both dry and wet conditions
• Original Equipment Fitment — Engineered to meet the exacting standards of select luxury and performance vehicle manufacturers
• Highway Auto and Light Truck Tire Replacement Limited Warranty — Eligible for Dunlop's replacement warranty program covering noise, vibration, and roughness issues

The SP Sport Maxx 050 DSST CTT is the choice for drivers who demand the grip and response of a max-performance summer tire without sacrificing the safety and confidence of proven run-flat technology. Select the correct size from the available variants to match your vehicle's OE specifications.