05 road king, looking to put an 18 x 4.25 rear wheel on. Has anyone done this? Any pics? What is the widest tire I can stuff in there?

 

here is my 04 king glide. about a $1K of parts but it all HD bolt on.

allows me to run a 170 x 4.5 x 17 (just like the 07 CVO Road King)

without making the changes i made, you are limited to a 150 tire on a 18 X 4.25

 

I upgraded to an 07 swingarm and a 1 1/4 belt/pulley. I run a 150 on a 4.25x18 wheel