Shimano SM-BB92-41B Press-Fit Bottom Bracket

Description

Bottom Bracket – Shimano Hollowtech II Compatible

This press-fit bottom bracket is designed for installing Shimano Hollowtech II (HT2) cranksets on frames with 41mm inner-diameter press-fit bottom bracket shells. It is suitable for both road and mountain bike frames that use BB86, BB92, or BB107 standards.

The system features durable steel sealed bearings housed in composite press-fit cups, ensuring smooth rotation, improved durability, and protection against dirt and moisture. It also includes a wave washer and bearing shields for proper preload and long-lasting performance with Hollowtech II integrated spindle cranksets.

This bottom bracket is ideal for riders looking for reliable performance and efficient power transfer on both road and MTB setups.

⚠️ Note: Not compatible with BB90 (Trek) or BB30 bottom bracket systems.

Specifications

• Compatibility: Shimano Hollowtech II cranksets (24mm integrated spindle)

• Frame Compatibility:

  • BB86 Road – 86.5mm shell width

  • BB92 MTB – 89.5 / 92mm shell width

  • BB107 MTB SAINT – 104.5 / 107mm shell width

• Shell Type: 41mm ID press-fit, non-threaded

• Bearing Size: 37 × 24 × 8 mm

• Chainline Compatibility:

  • Road: 47.5mm

  • MTB: 51mm

• Bearings: Steel sealed bearings

• Cup Material: Composite press-fit cups

Installation

For proper installation and removal, the use of Shimano-specific tools or a professional headset press is recommended.