★  Used on PF30 (Dia.46mm) BB shell bike frame, allows you to use 24/25(with shim) mm axle Shimano or KCNC compatible crankset.

 

★  BB shell insertion diameter: 46mm(PF30 spec), Bearing inner diameter 24, 25mm(with shim). For Shimano 24mm axle crankset, For KCNC K type 25mm axle crankset.

 

★Can be used on both Road&MTB crankset