BDL Closed Primary Belt Drive For Harley FL FX Features Kit includes front pulley, belt, clutch hub, clutch hub basket and Kevlar and Ball Bearing Pressure plate Clutch set (consists of two half plates, four full plates and five steel five plates) Direct bolt-in applications System now comes with the Quiet Clutch system Precision-machined, polished aluminum pressure plate uses nine springs and shoulder bolts to ensure even spring pressure (included in kit) Rear pulley has a 40mm, double-row bearing with an inner stress-proof steel clutch hub to support the clutch Replacement components available separately