Shimano SM-BB52 Hollowtech II bottom bracket in the 83 mm version for cranksets with 24 mm integrated bearing axle.

• BB-Type: HOLLOWTECH II (MTB)
• Threaded: BSA
• Threaded BB shell width: 83mm
• Shell diameter: BSA (BC 1.37)
• Compatible with (list may be incomplete): 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: Aluminium, plastic