I put the pullback bars on my Ultra and it was a quite a chore. You need to pull the outer fairing, loosen up the inner fairing (just to reposition it) and also remove the ignition switch/housing. You will need the service manual to do this......you can download it from this site. All of my cables reached just fine but my clutch cable is a little snug. My dealer told me they would need to change the clutch, brake & throttle cables/wires and then bleed the brakes. All in all they were talking around $1500 to swap out the bars, I almost wet my shorts and decided to do it myself. It took me about 15 hours of labor but I got it done and am very happy w/ the results. I even routed the cables inside the bars so I had to cut/splice the switch housing wires. I'm not sure what you would want for a RK but for an ultra classic, the pullback bars are great.