BB86 to 28/30MM Flanged, Dual Row PressFit 86/92 for Praxis - Compatible Cranks ABEC-3 Bottom BracketExpand your choice of cranks for use in frames with 41mm ID shells. Replace your bottom bracket with these dual row flanged bearings and run 28 30mm spindle Praxis Compatible cranks in your frame. These bearings fit directly in frames with 41mm ID bottom bracket shells. Crankset spindle length must be longer than 104mm when used in a 86. 5mm wide BB shell. Complete kit for one frame Includes: (2) Enduro BB86 to 30MM Dual Row ABEC 3 Bearing (2) 0. 5mm