i am using hella E-code headlights on my 08 classic and they fit just right. for the classic or two headlight rocket III's the 5 3/4" fit correctly, and for the touring if it uses a single bigger headlight, it should be a 7" headlight. i use the hella E-code headlights because they focus the light straight down your lane rather than splashing it all over the place. there's a distinct cut off at the top so you're not blinding oncoming traffic and they're a huge improvement over the stock plastic headlights. the hella's have a glass lens and glass reflector which control the beam much more precise than the stock plastic lights. at $50 bucks a piece they're a great deal too, for me anyway. you can use any h-4 bulb in them. susquehanna motorsports is who i go through for hella E-code headlights. they're for the european market=autobahn usage etc.