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

1% efficiency)

Helmet Style: Recreation

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

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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