Item # BBT-59.3
/ Tools / Crank & Bottom BracketBottom Bracket Tool — 16-Notch
A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano® Ultegra® BBR60 and Deore XT® MT-800 bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive.
The BBT-59.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage.
BBT-59.3 Features
Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 41–42 mm and a minor diameter (inside of notches) of 39 mm, including:
- Shimano® Ultegra® BBR60
- Shimano® Deore XT® MT-800
Not designed for use with impact drivers or other power tools.
Product Fitment
Below is a filterable table of bottom bracket models the BBT-59.3 is compatible with. For a full list of tool compatibility, see our Bottom Bracket Tool Finder.
| Shimano® | Threaded | Ultegra® BBR60 and Deore XT® MT800 Outboard |
