Your right Mully according to their listing they do not make it for the Rocket.
After looking I would day the 970 series is possible although they do not list them for the Rocket, but since the make them for the dyna and the sportster I cannot say one of the sized would not fit. SO I would still say you would have to comtact them. Personally since you like the auto rebound adjusting shocks like the 440 I would just stick with them. Myself since I have owned them and the Hagons along with the YSS In fact have the YSS on the Falcon right now and the 4040's on Gracie I will still order new shocks for Gracie as I like the adjustablle rebound dampening over the 440 which are not listed for the Rocket either they are listed for the Harley but just happen to fit the Rocket. Hmmm a bike known to vibrated and rattle (they say the ladies like that) using shocks the automatically adjust the reboound dampening again on a bike that vibrates) Not sur ewhat it is auto adjusting but like I said I have all three and prefere the others over the Progressive shocks. don't sweat it its just what I prefere. I am sure everyone else buy the progressives. Oh I also prefer a Motorcycle tire over a car tire. Anyway its not worth argueing over I will see you in Magiie Valley and I owe you a cold one

We can aggree on that can't we