The Shimano SM-BB52B (ASMBB52B) bottom bracket is a Hollowtech II type, designed for bicycles equipped with Shimano Hollowtech cranksets. It offers increased stiffness and efficient power transfer, built to withstand intensive use.
The bearing housing is engineered to reduce friction and ensure smooth rotation of the crank arms. It is compatible with Hollowtech II cranksets and fits frames with English threaded (BSA) standard.
🔧 Technical specifications:
Model: Shimano SM-BB52B
Type: Bottom Bracket
Compatibility: Hollowtech II cranksets
Thread standard: BSA (68/73 mm)
Color: Black / silver
Code: ASMBB52B
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