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BB Wheels Manufacturing Shimano PF30 Thread Together Out BK Top-notch bottom bracket
No more creaking. Smooth operation. Fast bearing replacement.
Specifically designed for installing 24mm spindle Shimano cranks in PF30 (46mm ID BB shell) frames without the need for any adapters. Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance.
Key Features