- The Shimano SM-BB52 Hollowtech II bottom bracket is available in the 68 / 73 mm version and is designed for cranksets with a 24 mm integrated axle.

- Use: MTB

- Model: SM-BB52-B

- Bottom bracket type: Hollowtech II

- Threaded: BSA

- Threaded BB shell width: 68 / 73 mm

- Thread diameter: BSA (BC 1.37)

- Compatibility:

- FC-M640

- FC-M645

- FC-M591

- FC-T611

- FC-M610

- FC-M612

- FC-M615

- FC-M4050

- FC-M4060

- FC-T4060

- FC-M552-L

- FC-M552-S

- FC-M622

- FC-M625

- FC-T551-S

- FC-T551-L

- Material: Aluminum