This reducer bushing is designed to fit the 30mm bearings found in BB30 and PF30 bottom brackets, and reduce the bearing to be compatible with 24mm outside diameter (OD) chromoly spindle cranksets.
Features:

    Allows the installation of FSA O24mm spindle Mega EX0 Cranksets into BB30A & PF30 bottom bracket shells
    Material: Aluminium cups with plastic covers
    BB Shell Width: 73mm for Road
    Compatibility: For K-Force Light, SL-K Light, Energy, Gossamer Pro, Gossamer, Vision TriMax, MegaEX0 Cranksets
    Weight: 83g