T47 Internal Bearing Bottom Bracket – Shimano Hollowtech II Compatibility

The T47 Internal Bearing Bottom Bracket is designed for installing Shimano Hollowtech II road cranks into T47 threaded internal bearing road frames with an 85.5mm width. Crafted for precision, durability, and smooth pedaling, this bottom bracket ensures a perfect interface between your frame and crankset.

Constructed with forged and machined heat-treated alloy cups, the BB accommodates 24mm drive and non-drive bearings. Choose between cartridge steel or Grade 5 / ABEC 5 ceramic bearings, both engineered specifically for Shimano Hollowtech II spindles.

Installation requires the T47 I.B. Shimano Tool (sold separately), ensuring proper fit and easy removal. Weighing approximately 104g, this bottom bracket is built to Shimano’s exact bearing stance specifications for reliable and consistent performance.

Key Features

• Compatibility: Shimano Hollowtech II road cranks, T47 I.B. road frames (85.5mm width)

• Bearing Options: Cartridge Steel or Ceramic (Grade 5 / ABEC 5)

• Drive/Non-Drive Bearings: 24mm

• Material: Forged & machined heat-treated alloy cups

• Weight: 104g

• Installation Tool: T47 I.B. Shimano Tool (sold separately)

• Precision: Built to Shimano bearing stance specifications

• Applications: Road cycling, performance-driven pedaling efficiency