Shimano BB-RS501 Hollowtech II Italian Bottom Bracket Sram Rival 1% efficiency)

1% efficiency)

70 CRANK ARM FINISH Anodized COMPATIBLE BB TYPE Outboard GEAR ARMS 4 COMPATIBLE CHAIN HG-EV|11|Speed/|HG-X11 SERIES Dura-Ace INNER RING MATERIAL Aluminum GENERATION R9100

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

Helmet Style: Recreation

Shimano BB-RS501 Hollowtech II Italian Bottom Bracket Sram Rival 1% efficiency)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 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