Shimano BB-RS501 Bottom Bracket Right And Left Adaptors Bsa

The Shimano BB-RS501 Bottom Bracket is a high-quality threaded HOLLOWTECH II bottom bracket designed for 68/70 mm BSA bottom bracket shells. Compatible with Shimano Tiagra and other HOLLOWTECH II cranksets, it features an improved seal design that enhances durability and helps protect the bearings from dirt and moisture, ensuring smooth and reliable performance.

Key Features

• Compatibility: Designed for 68/70 mm BSA threaded bottom bracket shells and Shimano HOLLOWTECH II cranksets, including the Tiagra series.
• HOLLOWTECH II Design: Provides efficient power transfer and reliable crankset performance.
• Enhanced Sealing: Improved seal construction helps prevent contamination, extending bearing life and reducing maintenance.
• Durable Construction: Engineered for smooth operation and long-lasting reliability under regular riding conditions.