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Parktool BBT-18 Bottom Brack and Lockting Tool

Product information "Parktool BBT-18 Bottom Brack and Lockting Tool"

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 

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