Shimano BB-RS501 Hollowtech II English Bottom Bracket

The Shimano BB-RS501 bottom bracket features an enhanced seal construction to provide long-lasting performance and service life. Designed for a perfect fit with Hollowtech II 24mm crank spindles Anodized aluminum cups are high strength and light weight For use with English thread bottom bracket frames Specifications keyword search: RS-500 Spindle Interface Type: Shimano Hollowtech II BB Shell Width (mm): 68 Bottom Bracket Shell I.D.: 1.37 Defined Color: Silver BB/Frame Interface: English Weight: 93