They made it useable...No use having a 1000rr motor that doesnt make power until 9k and does 180+mph on a naked bike that will snap your neck doing triple digits....it wasnt built to be a supersport, its built as a fun around town or canyon bike....i wouldnt take the rr motor if it was an option, this bike is hell above 90 mph anyways, so id rather have the power where i can use and feel and enjoy it than up top...no difference than an fz1 vs r1 also, its not "detuned" it's a different motor setup. you cannot simply swap in a 1000rr motor, its not the same motor, its just based off of that motor