Shimano BB-MT501 MTB BSA bicycle bottom bracket (EBBMT501B)

The Shimano BB-MT501 MTB BSA bottom bracket has been designed for precise crank performance in mountain bikes. This model utilises advanced HOLLOWTECH II technology, which ensures high stiffness and effective power transfer while riding.

HOLLOWTECH II Technology

The Shimano BB-MT501 MTB BSA features HOLLOWTECH II technology, which achieves an optimal combination of low weight and structural durability. This solution integrates the bottom bracket cup with the crank axle, enhancing the drivetrain's responsiveness and improving the use of pedalling force. The appropriate stiffness of the system supports dynamic riding on rough terrain, even under heavy loads.

Aluminium Construction and Precision Manufacturing

The Shimano BB-MT501 MTB BSA is made from aluminium, known for its strength while maintaining a low weight. Thanks to the precise manufacturing of its components, it offers high resistance to deformation and wear, ensuring long-lasting, trouble-free operation in demanding conditions. The aluminium structure also facilitates effective heat dissipation under load.

Compatibility and Kit Components

The Shimano BB-MT501 MTB BSA is designed for shells with a width of 68 to 73 mm and a crank axle diameter of 24 mm. The kit includes four spacers that allow for precise adjustment of the bottom bracket to specific frames and drivetrain configurations. This solution makes it easy to adapt to different types of mountain bikes.

Shimano BB-MT501 MTB BSA Bottom Bracket - Features:

• Utilises HOLLOWTECH II technology for increased stiffness and efficiency;
• Durable aluminium construction with optimised weight;
• Designed for shells with a width of 68–73 mm;
• Supports a crank axle diameter of 24 mm;
• Kit includes four spacers for precise installation;
• BSA system ensuring secure and stable mounting;
• High resistance to wear in off-road conditions;
• Aluminium construction supports effective heat dissipation.