The stock shock is 12.5" so in plain talking you would think 1/2" hard to say for when I orderd my Corbin Fastgun Seat I asked them to scoop a little bit extra out, plus with my new Doc Martin Boots I am sitting okay.
I am 5'-10" with 30" leg the rocket is a high bike and unless I can have both of the soles of my feet on the ground at stop signs i am not happy.
Dave
Before you do anything, suggest you talk to Ikon - they are Aussie manufactures in Albury ? (I think) http://www.ikonsuspension.com/
I fitted their "standard" recommended replacement shock
Transformed the R3.
About AUD$720 delivered to Qld.
I am 5' 10" and can put both feet on ground
Most riding is 2 up - set them on 2nd preload and #1 on shock - haven't changed them and passenger is now happy :lol: :lol:
I will now get their progressive front springs (AUD$168) to get the best handing/comfort I can
Regards
Chris P