BBT-69.4 Bottom Bracket Tool 16-Notch Sram Clearance and tension maintenance

and tension maintenance

the shaft and head are not bonded but are 3D-forged from 6061 aluminum

It also allows the use of SHIMANO's smartphone and tablet E-TUBE PROJECT software for maintenance and system updates

no genital numbness

BBT-69.4 Bottom Bracket Tool 16-Notch Sram Clearance and tension maintenanceA precision CNC machined aluminum tool for the installation and removal of select components with 16 notch tool fittings, including bottom brackets, center lock disc brakes, and e bike motor lockrings. Manufactured in house by Park Tool, anodized for easy identification and featuring a ratchet torque wrench compatible 3 8" drive. Fits 16 notch tool fittings with a major diameter (outside of notches) of 4445 mm and a minor diameter (inside of notches)