Park Tool

BBT-18 Bottom Bracket Tool

The BBT-8 Bottom Bracket Tool is used for installing and removing 8-notch Shimano XTR M950 and Truvativ ISIS Drive bottom bracket cups. Also fits 8-notch chainring adapter lockring on some Shimano and Truvativ cranksets.

• Used to remove and install all Shimano ISIS Drive and ISIS Overdrive eight-notch bottom bracket cups
• 36mm wrench flats
• Compatible with Bosch Active Line, Active Line Plus, and Performance Gen 3