Park tool compact bottom bracket tool bbt32as a manufacturer of bicycle specific tools since 1963 you can safely rely on park tools many years of experience the worlds largest bike tool manufacturer is the first choice of professional and home bicycle mechanics around the world featureseconomical and compact this version of the bbt 22 tool is perfect for the home mechanic the bbt 32 installs and removes shimano and isis drive 20 tooth splined bottom bracket cups features 32mm wrench flats t