On mine I put a piece of leather belt on each side of the rubber wedges and then fitted the sprocket carrier back into the hub.I had to tap it in slightly with a rubber mallet.

2006 865 Neon Blue/Jet Black Speedmaster,790cams, TTP Stage 2 Firestarter, Epco Exhaust with 10.25" Samson Vrod baffles, UNI pods with 40 pilots, 150 mains,Thruxton needles, 3 turns out.