The rear sprocket will bolt right up as the TBS and America/Speedmasters use the same sprocket carrier. The front sprocket would be the one in question as the TBS and America/Speedmasters use different gearbox output shafts. The 43 tooth TBS rear sprocket is also different from the 43 tooth rear sprocket of the Bonnevilles.
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.
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