The Shimano Deore SM-BB52 Bottom Bracket is built for durability and consistent performance, offering a significant upgrade in sealing compared to previous generations. Designed for HollowTech II cranksets, it ensures smooth rotation even in demanding conditions.

Built to Withstand the Elements: This bottom bracket is engineered with improved sealing technology that effectively keeps out dirt, mud and moisture. Whether you're riding through rain, gravel, or trail debris, the SM-BB52 provides reliable protection to extend component life.

Smooth Rotation with HollowTech II Compatibility: Its precision bearing system ensures minimal resistance and friction, delivering efficient pedaling and consistent power transfer. Optimized for 24mm spindles, it works seamlessly with Shimano HollowTech II cranksets for both MTB and trekking setups.

Rugged Construction for Demanding Use: The right and left BSA threaded adapters are built to fit securely into frames with 83mm hanger width. With durable construction and robust internals, this bottom bracket is a dependable foundation for aggressive trail riding or daily commuting.

Designed for performance and longevity, the Shimano Deore SM-BB52 Bottom Bracket is a great choice for riders who demand more from their drivetrain.