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

Bottom Bracket Shell I.D.	36
BB/Frame Interface	Italian
BB Shell Width (mm)	70
Weight	93
Spindle Interface Type	Shimano Hollowtech II
Defined Color	Silver
keyword search	RS-500
Interface	Italian