Park Tool BBT18C - Bottom Bracket tool - 8 Notch Cups - Shimano and ISIS

The Park Tool BBT-18C is a heavy duty, investment cast tool for installing and removing all Shimano, SRAM, and ISIS Drive eight-notch bottom bracket cups. This tool also includes 36mm wrench flats for ease of use.Shimano Octalink drive-side bottom bracket cups with external notchesISIS Drive bottom bracket cups including Truvativ and BontragerFront chainring lockring for Bosch Gen 3 and Gen 4 e-bike systemsFront chainring lockring for Specialized Levo Brose e-bike systems