Hey speed3ee, when it comes to suspension get the best you can afford mate, ideally with springs to suit your weight solo and 2up.
all that info is on their web site mate, I just bought second hand Revo A, from a site member for my Road king, standard shock for this model is 12" the legends were 13" & sag down to a bit above 12" they are perfect for stability & comfort ,so many years wasted with inferior progressive shocks. "Easy R" have them I think