PARK TOOL - RT-2 - OVERSIZED HEAD CUP REMOVER
The RT-2 Head Cup Remover makes headset cup removal easy. The tool is pulled through the frame until the flared ends snap in behind the cup. A blow on the tool head removes the cup.
SHIS Terminology: The RT-2 will remove cups of ZS49, ZS55, ZS56, EC49 and EC56 headsets.