Road King and Electra Glide seats are different in the nose. E.G. has a longer nose that goes up the tank a bit. R.K. has a console that goes farther back. I have a R.K. seat on my E.G., and a chrome piece to fill the console gap. The seats will interchange, it's just that the nose will stick up noticeably. The att. pic. is a Street Glide seat (same as R.K.) on my E.G., note the black "filler" piece between seat and console (changed out to chrome since pic.)