Machined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear.Specifically designed for installing 24.00mm spindle diameter cranks in Cannondale BB30A frames without the need for any adaptersFSA MegaExo spindles can be between 24.00mm and 24.07mm in diameterReplaceable Enduro bearingsMade in the USAItem SpecificationsBB Shell Width (mm)73BB/Frame InterfaceBB30aBottom Bracket Shell I.D.42Defined ColorBlackSpindle Interface TypeFSA MegaExoSpindle Interface TypeFSA MegaExo LightSpindle Interface TypeShimano Hollowtech IIWeight119 Wheels Manufacturing BB30 Thread Together Bottom Bracket Bottom Brackets UPC: 811079025142