Shimano BB-RS501 Bottom Bracket

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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 c rank spindles Anodized aluminum cups are high strength and light weight Bottom Bracket Shell I.D. 1.37, 36 BB/Frame Interface English, Italian BB Shell Width (mm) 68, 70 Weight 93 Spindle Interface Type Shimano Hollowtech II Defined Color Silver keyword search RS-500 Show more