Wheels MFG BB30 Outboard ABEC-3 Bottom Bracket for Shimano BF PSI Bearings: Enduro Angular Contact ABEC-5

Bearings: Enduro Angular Contact ABEC-5

a red ring will light up around the button

IPX7 waterproof rating

Black anodized aluminum

The six larger sprockets have a double frame system for extreme torsional stiffness

Wheels MFG BB30 Outboard ABEC-3 Bottom Bracket for Shimano BF PSI Bearings: Enduro Angular Contact ABEC-5Two machined aluminum cups thread together keeping the bottom bracket stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement. Specifically designed for installing 24. 00mm spindle diameter cranks (Shimano, Etc.) in BB30 (42mm ID BB shell) frames without the need for any adapters. Specifications Bearings: Enduro ABEC 3 Color: