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Park Tool

Park Tool - BBT-9 Bottom Bracket And Lockring Tool

Bottom Bracket Tools

Product Details


Bicycle bottom brackets occasionally require removal for service, replacement, or upgrading. The Park Tool BBT-9 is used to remove and install select threaded bottom brackets with 16-notch tool fittings, including Shimano®, SRAM® GXP, Chris King®, Campagnolo®, and many others. This tool fitting is also found on some disc brake rotor lockrings.

Additionally, the BBT-9 includes a tool that removes and installation of 8-point Shimano Hollowtech II crank arm adjusting caps. The long, plated-steel handle offers good leverage for high-torque applications and is vinyl-dipped for comfort.

NOTE: The older XTR M952 and Dura-Ace 7703 cartridge bottom brackets use the BBT-2 only. The Dura-Ace BB7700 bottom bracket (adjustable type) uses the BBT-7.



Fits 16-notch tool fittings with a major diameter (outside of notches) of 44–45 mm and a minor diameter (inside of notches) of 42.7 mm, including:

  • Shimano® BB80, BB5700, XT® BB70, BB51, and previous external bearing threaded cups
  • Threaded bottom bracket cups from Campagnolo®, Chris King®, FSA® MegaExo®, Hope™, SRAM®/Truvativ® GXP®, Race Face® X-type, Surly®, Wheels®, Fulcrum®, and others
  • 16-notch disc brake rotor lockrings
  • 16-notch Bafang® BBSH, BBS02 mid-drive motor lockrings

Fits 8-point tool fittings on Shimano® Hollowtech II® crank arm caps:

  • Equivalent to Shimano® TL-FC16 or TL-FC18 tool


Check out the Bottom Bracket Tool Finder

Code Description RRP (Inc. GST) Availability
K-BBT-9 Park Tool Bottom Bracket Tool - Hollowtech II $64.90 In stock
K-728 Park Tool REVISED DUST CAP DRIVER - BBT-9 (post-5/04) $6.90 In stock