The BBT-4 is made for the installation & removal of 6-notch SC-S & 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, & the minor diameter 38mm.
BBT-4 Features The BBT-4 is compatible with the following sealed cartridge bottom brackets:CampagnoloÂ® Veloceâ„¢ Xenonâ„¢ Mirageâ„¢ Daytonaâ„¢ Avantiâ„¢