In the vast sea of bottom bracket "standards" it might get a little frustrating to find the correct bottom bracket choice for your beloved bike. Conventional English threaded bottom bracket shells won't stop you from upgrading your bike. This Rotor BB1 2010 RD BSA 68mm Steel bottom bracket allows for the installation Rotor 3D24 or Shimano 24mm cranksets.
Designed to work with BSA threaded bottom brackets
100% CNC-machined, 7075 aluminum
Labyrinth seals prevent bearing contamination
Designed to work with ROTOR and Shimano 24mm cranksets
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