Park Tool BBT-18 Bottom Bracket Tool for 8-Notch ISIS Cups

Park Tool BBT Series Bottom Bracket Tools.

• 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, Performance Gen 3, and Gen 4 ebike systems and also Specialized: Levo/Brose ebike systems