The FSA MS188 BB30 Spacer Kit compensates for instances, where despite proper installation of BB30 cranksets into BB30 or PF30 bottom bracket shells, there is still side play. The FSA Spacer Kit for BB30 MS188 shims will remove the side play. Place the necessary shims between the non-drive bearing cover and wave spring washer (road) adjustment collar (for ATB). The FSA MS188 BB30 Spacer Kit ensures that crankset movement is efficient and trouble free at all times. The packaging includes 3pcs of spacers.