Park Tool Bottom Bracket Tool BBT-4

- The BBT-4 is made for the installation and removal of 6-notch SC-S and AC-H cartridge cups used on Campagnolo Veloce, Xenon, Mirage, Daytona and Avanti sealed cartridge bottom brackets. These bottom brackets have six notches around the outside of each cup. The handle of the BBT-4 is vinyl coated for comfort.