Two 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 Angular Contact ABEC-5
Color: Black
Bottom Bracket/Frame Interface: BB30, Specialized Alloy OSBB
Bottom Bracket Shell Width: 68mm - 73mm
Bottom Bracket Shell I.D.: 42mm
Over Bearing Width: 90.5mm in 68mm wide shell*
Crank Spindle Diameter: 24.00mm
Tool Pattern: 44mm, 16-notch

Mfr Claimed Weight
127g