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Park Tool BBT-49.3 Bottom Bracket / Chainring Tool
- BB Fit: Shimano® XTR® BB93, Dura-Ace® BB9000, Token®
- Chainring Lockrings Fit: Shimano® STEPS square spindle e-bike systems including E6000, E6002, & E6050
- Fits 16 notch cups with a major diameter (outside of notches) of 39-40 mm and a minor diameter (inside of notches) of 37.6 mm
- Replacement for Shimano TL-FC38 tool
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.
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