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
- TECH SPECS
|BB Shell Width (mm)
|Bottom Bracket Shell I.D.
|Spindle Interface Type
|Shimano Hollowtech II