ACFT EQUIP PROB PARTIAL LOSS OF NOSE TIRE RECAP.

Narrative

NEAR ROTATE SPD; WE NOTED A VERY BRIEF THUMP OR RUMBLE SOUNDING LIKE XING A TAR STRIP ON A HWY AND LASTING NO MORE THAN 1/4 SECOND. I WAS NOT SURE IF IT WAS FOREIGN OBJECT DAMAGE ON THE RWY; A RWY REPAIR OR A PIECE OF NOSE TIRE SINCE THE SOUND WAS HEARD FROM THE FORWARD PORTION OF THE ACFT. I REQUESTED LAS TWR DO A RWY SWEEP. I WAS ADVISED THAT NOTHING WAS FOUND. COMPANY MAINT WAS CONTACTED AND WE AGREED THAT; SINCE THERE WAS NO POSITIVE INDICATION OF ANY PROB; THE FLT CONTINUE TO CMH. AS STRICTLY A SAFETY PRECAUTION; I REQUESTED THE EMER EQUIP MEET THE ACFT ON LNDG. SINCE I HAD NO REAL OR POSITIVE INDICATION OF A PROB AND SINCE THE RWY SWEEP IN LAS WAS NEGATIVE; I DID NOT DECLARE AN EMER. THE LNDG WAS NORMAL WITH A SMOOTH TOUCHDOWN. AS THE NOSEWHEEL CONTACTED THE RWY; WE NOTED A VIBRATION WHICH DECREASED AS WE SLOWED. WE EXITED THE RWY AT THE NORMAL TURNOFF POINT; STOPPED AND WAITED FOR THE EMER VEHICLES TO INSPECT THE TIRES. I WAS INFORMED THAT IT WAS OK TO TAXI TO THE GATE. A POST FLT INSPECTION REVEALED BOTH TIRES TO BE STILL INFLATED; BUT ONE WITH A PIECE OF RECAP MISSING. BOTH TIRES WERE CHANGED AND THE FLT DISPATCHED ON SCHEDULE. IF A HISTORY OF NOSE TIRE FAILURES EXISTS; A RECOMMENDATION WOULD BE TO CHANGE TIRE MANUFACTURERS OR DECREASE THE WEAR LIMITS BEFORE TIRES ARE TO BE CHANGED.