Bottom Bracket Sprocket Holder

Holder Tool for Splined Bottom Bracket Socket


  • Holds socket tool to Bottom Bracket axle to eliminate slippage during removal and installation
  • Works with square taper and splined axles with M8 or M15 internal spindle thread

If you have even battled with an over-tightened Shimano® and ISIS Drive® splined bottom bracket cup, the Bottom Bracket Socket Holder will solve this problem. Though these types of bottom brackets proved themselves as the standard for many years and continue to be found on many bikes, the tendency for these shallow splines to slip during removal or installation has resulted in more than a few expletives, high frustration levels, and worst of all, injuries.

BB Socket Holder Splined Instructions

BB Socket Holder Square Taper Instructions