about the Dunlop Tires SP Sport 4000 DSST CTT

An optimized groove area helps provide grip on multiple surfaces for all-season traction, while circumferential rain grooves enhance traction in wet weather Rigid tread blocks for dry handling performance help provide excellent steering and control during cornering Twin-shift noise reduction helps provide quiet performance Combined Tire Technology (CTT™) provides less tire weight and rounder cavity shape to help offer a softer ride Dunlop® Self-Supporting Technology (DSST)® uses a patented sidewall construction to allow continued driving on a flat tire for up to 50 miles at 50 mph in normal conditions**