Product Details

The BBT-18 is a heavy duty, investment cast tool for installing and removing the following:

  • Shimano® Octalink® right side bottom bracket cup with external notches
  • Bontrager® ISIS Drive™ bottom bracket cups
  • Front chainring lockring for Bosch® Gen 3 and Gen 4 e-bike systems and Specialized® Levo® Brose® e-bike systems
Features
  • 8 notches with an outside diameter of nominally 43.4mm
  • The inside-to-inside width is approximately 38mm
  • Each notch is approximately 3.9mm wide
  • The hole in the center of the casting is 22.5mm, and will not fit over 30mm spindles
  • Can be used with a 36mm crow foot (such as the TWB-36) or open-ended wrench

    About Park Tools
    Park’s pledge for the future is simple: Build the best tools. Their commitment to that principle is stronger than ever. They build bicycle tools and maintenance equipment, it's all they do and they’re good at it. Supplying quality bike tools since 1963.

    Park Tool BBT-18 8-notch Bottom Bracket Tool

    Product Code 20197254
    Other products by Park Tool
    $38.00
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    Tool $38.00 $41.00
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    Price may differ in our Retail store.
    • In-store: Expect delivery in 2-3 days.
    • With Supplier: Expect delivery in 4-7 days.

    Finance Options

    Product Details

    The BBT-18 is a heavy duty, investment cast tool for installing and removing the following:

    • Shimano® Octalink® right side bottom bracket cup with external notches
    • Bontrager® ISIS Drive™ bottom bracket cups
    • Front chainring lockring for Bosch® Gen 3 and Gen 4 e-bike systems and Specialized® Levo® Brose® e-bike systems
    Features
    • 8 notches with an outside diameter of nominally 43.4mm
    • The inside-to-inside width is approximately 38mm
    • Each notch is approximately 3.9mm wide
    • The hole in the center of the casting is 22.5mm, and will not fit over 30mm spindles
    • Can be used with a 36mm crow foot (such as the TWB-36) or open-ended wrench

      About Park Tools
      Park’s pledge for the future is simple: Build the best tools. Their commitment to that principle is stronger than ever. They build bicycle tools and maintenance equipment, it's all they do and they’re good at it. Supplying quality bike tools since 1963.