Item # BBT-49.3
/ Tools / Crank & Bottom Bracket / E-BikeBottom 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® XTR® BB93, Dura-Ace® BB9000, and Token® bottom brackets. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive.
The BBT-49.3 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-49.3 Features
Fits 16-notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 39-40 mm and a minor diameter (inside of notches) of 37.6 mm, including:
- Shimano® XTR® BB93
- Shimano® Dura-Ace® BB9000
- Shimano® Dura-Ace® BB-R9100
- Token®
Also fits chainring lockrings on Shimano® STEPS square spindle e-bike systems including:
- E6000
- E6002
- E6050
Replacement for Shimano TL-FC38 tool.
Not designed for use with impact drivers or other power tools.
Product Fitment
Below is a filterable table of bottom bracket models the BBT-49.3 is compatible with. For a full list of tool compatibility, see our Bottom Bracket Tool Finder.
| Shimano® | Threaded | Dura-Ace® and XTR® Outboard |
