VEHICLE DESCRIPTION: POLICE MOTORCYCLES EQUIPPED WITH DUNLOP SPORTMAX A REAR TIRES, SIZE 160/60 ZR18. THESE TIRES MAY HAVE BEEN INSTALLED ON SOME OF THE VEHICLES AS REPLACEMENT EQUIPMENT. THE CAMPAIGN IS LIMITED TO THOSE SPORTMAX A REAR TIRES HAVING DATE STAMPS OF 189, 199, OR 209. IT IS POSSIBLE THAT AREAS OF REDUCED ADHESION ON THE TREAD REINFORCING CUSHION STRIPS MAY HAVE RESULTED DURING PRODUCTION OF THE TIRES. THIS COULD LEAD TO LOCALIZED SEPARATIONS AND BLISTERS WHERE THE TREAD JOINS THE SIDEWALL.