Park Tool BBT-18 8 Notch ISIS Cups / Octalink Bottom Bracket and Lockring Tool

4 In stock
Article code BBT-18
Front chainring locking for Bosch Gen 3 and Gen 4 e-bike systems and Specialized Levo Brose e-bike systems
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  • The BBT-18 has 8 notches with an outside diameter of nominally 43.4 mm
  • The inside-to-inside width is approximately 38 mm
  • Each notch is approximately 3.9 mm wide
  • The hole in the center of the casting is 22.5 mm and will not fit over the 30 mm spindles
  • Can be used with a 36 mm crow foot (such as the TWB-36) or open-ended wrench



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