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Park Tool Bottom Bracket Tool BBT-4

Park Tool Bottom Bracket Tool BBT-4

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 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. The major diameter of the tool is nominally 44mm, and the minor diameter 38mm.

The BBT-4 is compatible with the following sealed cartridge bottom brackets:


  1. Veloce™
  2. Xenon™
  3. Mirage™
  4. Daytona™
  5. Avanti™


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