Unless you can engineer some way to make a XX/954 hybrid, your best bet will probably be to get a 980cc kit for your 954. (or get a CBR 1000RR next year)954teo : Thanks for the replies! I forgot about the swingarm mounting directly to the tranny case. I don't fit on the Blackbird, the fairing hits my shins. I just asked because I was a bit curious about increasing the engine displacement.