I have a 2010 fatboy. The wind blows me around but I dont think changing the rims is going to stop aneything.......Just saying
Funny... one of the things I noticed immediately about the Fat Boy was its stability in wind.
On the way home on the Fat Boy, 75mph (had to try out 6th gear) over the same bridge and the bike tracked like it was on a rail.
No wind issues for me. Oh, and it's got the bullet hole wheels though I don't think that really matters in terms of wind resistance.