Park Tool BBT-9 Bottom Bracket Tool Shimano Hollowtech II 16-Notch

Park Tool BBT-9 Bottom Bracket Tool

The Park Tool BBT-9 is a professional-grade bottom bracket tool designed for the installation and removal of 16-notch external bottom bracket cups, including Shimano Hollowtech II systems. Built to Park Tool’s shop standards, the BBT-9 provides secure engagement, precise fit, and long-term durability for modern road, gravel, MTB, and e-bike drivetrains.

This versatile tool also fits most thru-axle Centerlock lockrings, making it a must-have for workshops and home mechanics servicing Shimano-style crank and brake systems.

Features & Benefits

• 16-notch interface design
  Securely engages external bearing cups for safe, damage-free installation and removal

• Shimano Hollowtech II compatible
  Designed specifically for Shimano-style external bottom brackets

• Multi-brand compatibility
  Works with a wide range of 16-notch bottom bracket systems

• Centerlock lockring compatibility
  Fits most thru-axle Centerlock disc brake lockrings

• Professional shop-quality construction
  Built for repeated use with excellent durability and precision

Bottom Bracket Compatibility

Fits 16-notch external BB cups from:

• Shimano Hollowtech II

• Race Face

• FSA

• Truvativ

• SRAM

• DT Swiss

• Campagnolo

• And other similar 16-notch bottom bracket systems

Also compatible with:

• Most thru-axle External Centerlock rotor lockrings

Technical Specifications

• Model: BBT-9

• Tool Type: Bottom bracket installation/removal tool

• Interface: 16-notch external cup

• Drive: Compatible with standard wrench or shop tools

• Use: Bottom brackets & Centerlock lockrings

Recommended Use

• Installing or removing Shimano Hollowtech II bottom brackets

• Servicing 16-notch external BB systems

• Centerlock rotor installation and removal

• Road, gravel, MTB, and e-bike maintenance

Why Choose Park Tool?

Park Tool is the industry standard in professional bicycle tools, trusted by mechanics worldwide. The BBT-9 delivers reliable engagement, protects components from damage, and ensures accurate installation every time.

A must-have bottom bracket tool for Shimano Hollowtech II and 16-notch systems—perfect for professional shops and serious home mechanics alike.