RACE FACE bottom bracket insert BSA 73 O30 Ext. Seal black (BB19BSA687330)

The RACE FACE BSA 73 O30 Ext. Seal black bottom bracket is designed to provide precise support for crank axles in both MTB and road bikes. Its BSA standard construction guarantees compatibility with frames featuring a 73 mm bottom bracket width and crank axles with a diameter of 30 mm.

BSA Standard and Compatibility

The RACE FACE BSA 73 O30 Ext. Seal model uses a threaded BSA standard, which ensures a solid attachment of the bottom bracket in the frame's bottom bracket shell and high resistance to loosening during intensive use. The 30 mm crank axle diameter allows for the installation of modern cranks with increased stiffness, improving power transfer efficiency. The design adheres to the specification for shells with a width of 73 mm, supporting a wide range of drivetrain configurations.

Design Dedicated to Sports Bikes

The RACE FACE BSA 73 O30 Ext. Seal black bottom bracket has been created with demanding sports bike users in mind, where precision and reliability are crucial for achieving the best results. This model is a vital component of the drivetrain, supporting both high-performance mountain biking and road racing. The carefully designed construction contributes to the high efficiency of the entire crankset system.

RACE FACE BSA 73 O30 Ext. Seal black - features:

• BSA threading standard providing wide compatibility with frames;
• Dedicated bottom bracket shell width of 73 mm;
• Supported crank axle diameter of 30 mm for high stiffness;
• External sealing system protecting bearings from dirt;
• High resistance to loosening and intensive use;
• Design intended for MTB and road bikes;
• Solid support for the crank axle for smooth drivetrain operation.