Shimano BB-RS501 Hollowtech II Italian Bottom Bracket Sram Rival while a reflective graphic at

while a reflective graphic at the back boosts rider visibility for added safety on the road

This integrated system delivers the power and engagement required to take on everything from steep climbs to all out racing

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no matter your pace

Shimano BB-RS501 Hollowtech II Italian Bottom Bracket Sram Rival while a reflective graphic atThe 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 Italian threaded bottom bracket frames keyword search: RS 500 Spindle Interface Type: Shimano Hollowtech II BB Shell Width (mm): 70 Bottom Bracket Shell I. D.: 36 Defined Color: Silver BB