Shimano - BB-UN300 Square Taper 73mm BSA Bottom Bracket

The quality and performance-oriented Shimano BB-UN300 cartridge bearing bottom bracket features a JIS square taper mount and is designed for frames with BSA thread and 68 mm shell width. A stabilizer ensures a constant chain line. Material:adapter: aluminium (left), aluminium...

Shimano BB-UN26 Square Taper bottom bracket inclusive fastening bolts for cranks with JIS Square Taper mounting such as Acera, Alivio und Deore. Suitable for frames with BSA thread (68mm).

The DURA-ACE groupset is the result of Shimano's ongoing passion for technology. This is reflected in every single component in the groupset. All components are joined together to work as one, reinforcing each other for unparalleled performance. This is how...

The SRAM DUB™ (Durable Unified Bottom Bracket) bottom bracket series has a simple job — connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, SRAM has engineered the DUB™ spindle...

With the BB-MT500-PA Hollowtech II Press Fit bottom bracket from Shimano, Hollowtech II cranks (24 mm axle) can be installed in MTB frames with 89 to 92 mm bottom bracket width. Better sealing and rotation, same as SM-BB52