Shimano BSA SM-BB52 bottom bracket insert (ESMBB52D)

The Shimano BSA SM-BB52 bottom bracket is designed for precise power transfer on bikes equipped with 83 mm wide shell cups. With its advanced design and integration of key technological solutions, this component serves as a solid foundation for drivetrain systems using 24 mm axle cranks.

HOLLOWTECH II Technology

The Shimano BSA SM-BB52 model features HOLLOWTECH II technology, which allows for an efficient combination of rigidity and low weight in the bottom bracket construction. This technology enables greater efficiency while riding and ensures optimal energy transfer to the bike's drivetrain. The HOLLOWTECH II system also facilitates easy installation and maintenance thanks to its integrated design solution.

Industrial Bearings and Durability

The bottom bracket is equipped with high-quality industrial bearings that guarantee smooth operation even under heavy use. The industrial bearings minimise rolling resistance and increase the reliability of the entire crankset of the Shimano BSA SM-BB52 model. This type of solution also ensures high wear resistance and long-lasting performance characteristics.

Compatibility and Installation Parameters

The bottom bracket design is adapted for 83 mm wide shells and cranks with a 24 mm axle diameter, allowing for wide compatibility with modern drivetrain systems. Thanks to the BSA standard, the bottom bracket ensures connection stability and ease of integration with bicycle frames equipped with threaded bottom bracket shells. The precise manufacturing of all components contributes to hassle-free installation and ensures flawless cooperation with Shimano components.

Shimano BSA SM-BB52 Bottom Bracket - Features:

• HOLLOWTECH II technology for optimal power transfer and rigidity;
• Industrial bearings guaranteeing smooth and reliable operation;
• Design intended for 83 mm wide shells;
• Compatibility with 24 mm axle cranks;
• BSA mounting standard with English thread for a wide range of frames;
• Easy integration with Shimano drivetrain systems;
• Solutions supporting long-lasting performance characteristics;
• Minimisation of rolling resistance thanks to the bearings used;
• Connection stability even during intensive use.