Wheels Manufacturing Shimano Road External Bottom Bracket

This bottom bracket is designed for frames with a standard BSA/English threaded shell, which is 68mm wide. If your frame uses a press-fit system or a different threading standard, this unit will not be compatible.

It is compatible with 24mm spindle cranksets, including Shimano Hollowtech II, FSA MegaExo, and RaceFace EXI systems. It is specifically engineered to interface with these standards.

Angular contact bearings are designed to handle both radial and axial loads simultaneously, which is ideal for the forces applied during pedaling. This results in a smoother, more durable rotation compared to standard deep-groove cartridge bearings.

Yes, the bearings are replaceable. Because the unit uses standard Enduro bearings, you can service or replace them when they eventually wear out, extending the lifespan of the bottom bracket shell.

The package includes the CNC-machined aluminum cups, the bearings, and the necessary dust covers and seals. You will need a standard external bottom bracket tool to install it into your frame.