Shimano BB-RS501 BSA Hollowtech II Bottom Bracket mudguards Gear arms: 4-arm

Gear arms: 4-arm

Front derailleur: SHIMANO

5kg (varies)

Top Zero-Stack 1 1/8" (ZS 44mm)

but with a clear emphasis on functionality and comfort

Shimano BB-RS501 BSA Hollowtech II Bottom Bracket mudguards Gear arms: 4-armThe BB RS501 from Shimano is a high quality bottom bracket for frames to BSA standard with 68 mm housing width. Usable is the Shimano BB RS501I with BSA thread for Hollowtech II cranksets with 24 mm shaft. Product features Shimano BB RS501 68mm shell width BSA Use: Road, Cyclocross, City, Gravel Model: BB RS501 BB Type: HOLLOWTECH II (24mm) Threaded: BSA Threaded BB shell width: 68mm Shell diameter: BSA (BC 1. 37) Mounting: screwed Compatibility