The Dunlop SP Sport 01 DSST (Dunlop Self-Supporting Technology) is an Ultra High Performance Summer self-supporting run-flat tire for sports cars, coupes and sedans. SP Sport 01 DSST tires were initially developed for Original Equipment use by leading automotive manufacturers to complement the latest in vehicle design and offer temporary extended mobility in the event a puncture allows complete pressure loss. Like all summer tires, SP Sport 01 DSST tires are not intended to be driven in near-freezing temperatures, through snow or on ice.
Dunlop Self-Supporting Technology (DSST) tires incorporate special sidewall reinforcements that support the weight of the vehicle even after sustaining air pressure losses that would render conventional tires immobile. While internal tire damage will likely make replacement necessary, DSST tires are designed to endure being run on while flat for up to 50 miles at speeds up to 55 mph and provide drivers the temporary extended mobility necessary to drive through stormy weather and away from dangerous situations.
SP Sport 01 DSST tires feature a 100% silica tread compound that increases dry and wet grip while reducing rolling resistance and increasing treadwear. The tread compound is molded into an asymmetric Tri-Area-Tread design that is divided into three tread segments to blend sportiness and safety. The tires' internal structure includes twin steel belts reinforced by Dunlop's Jointless Band (JLB) spiral wrapped nylon to provide high speed durability and feature a rayon cord reinforced casing to enhance durability.
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