I put a mustang vintag solo seat on my 2011 FXDWG. After 18 years in the Army my lower back and tail bone thank me every time I ride on the mustang seat. I personnaly like the look of it as well. This seat is very comfortable, and I took third place at a bike show on post, so alot of people seem to like the look of it as well.

 

Not a WG, but the FB has the bobtail fender too: