The BBT-49.3 Bottom Bracket Tool is a precision CNC-machined aluminium tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano XTR BB93, Dura Ace BB9000 and Token bottom brackets. Manufactured by Park Tool, it features a ratchet / torque wrench compatible 3/8" drive.

Fits 16 notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 39 to 40mm and a minor diameter (inside of notches) of 37.6mm including Shimano STR BB93, Shimano Durace Ace BB9000 and Token.

BBT-49.3 also fits chainring lockrings on Shimano STEPS square spindle e-bike systems including E6000, E6002, E6050.

SPECIFICATIONS

In the Pack: 1x BBT-49.3
Compatibility: Description above