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Park Tool Bottom Bracket and Lockring Tool - " 8-Notch

Pricing
£28.99
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Description The BBT-18 is a heavy duty investment-cast tool for removing and installing components with an eight-notch tool fitting, including select cartridge bottom brackets, as well as chainring lockrings on some e-bike drivetrains.

Installs and removes the following components with eight-notch tool fittings:

Shimano® Octalink® drive-side bottom bracket cups with external notches
ISIS Drive bottom bracket cups including Truvativ® and Bontrager®
Front chainring lockring for Bosch® Gen 3, Gen 4, and Gen 5 e-bike systems
Front chainring lockring for Specialized® Levo Brose e-bike systems
Front chainring lockring for Avinox e-bike systems.

Tool specifications:

8 notches with a nominal outside diameter of 43.4 mm
The hole in the center of the casting is 22.5 mm, and will not fit over 30 mm spindles
Features 36 mm wrench flats
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.
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