As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERE VIBRATION DEVELOPED ABOUT THE NOSE WHEEL AREA. ABORTED TAKEOFF. THE AIRCRAFT REACHED 120 KNOTS BUT STOPPED SAFELY AND TAXIED BACK TO THE GATE. MAINTENANCE FOUND THE NOSE WHEEL TIRE CHINE SEPARATED FROM THE TIRE SIDEWALL. REPLACED THE NR 4 MAIN AND BOTH NOSE TIRE ASSEMBLIES. AIRCRAFT RETURNED TO SERVICE.