150 mm (6") Safety Clutch 150 mm (6") OD COMBINED FREEWHEEL - SAFETY CLUTCH COMPONENTS Components fit BARE-Co B9164 Clutch   Conversion Kit for Standard 6" Clutch B2301 REF PART No. DESCRIPTION 1 B2301 Freewheel Base Unit 150mm (6") dia (includes bush) 2 B4172 Bush 1 1/8" ID 3 B4165 Friction disc 127mm (5") x 45mm (1 3/4") - 2 req. 4 B4167 Drive Plate 127mm (5") 1 3/8" x 6 spline 5 B4168 Pressure Plate 165mm (6 1/2") dia 6 B3723 Spring (6 req) 150 mm (6") Safety Clutch