Join Date: Jun 2009
Location: San Tan Valley, AZ
Year/Make/Model: 2009 Kawasaki Vulcan 900 Custom
To answer your question, you're talking a 300cc difference. There is a difference, but frankly, it's not something you'd notice normally. The 900 is a strong running midsize engine that i like more and more with each mile i put on it. I also absolutely love the ride of this bike.
Now the real question... WHY is your back and hip killing you? Would it be cheaper to put a different seat and/or add/remove forward controls to alter your riding position? How about the handlebars? Would you be more comfortable with a different reach? If you're happy with the sportster, my guess is you would be getting off cheaper if you changed some accessories.
Personally, i've owned a sportster in the past; i like the ride of my 900 Custom better and am very happy with the engine performance.
Keep the Shiny Side Up!
'09 900 Custom SE on the Darkside
"Not all those who wander are lost." J.R.R. Tolkien
Last edited by Helek_52; 09-28-2009 at 04:59 PM.