
This bottom bracket tool from Super B allows you to install and remove 12 notch external bearing bottom brackets.
. 46mm 12 notch OD cup to install and remove Race Face CinchT, Rotor BSA30, Zipp VumaT, Hawk RacingT BB3086 and many other 12 notch external bearing bottom brackets
. Use with TB-SW90 1/2" socket wrench