i would think you could get at a minimum $600 for your bike(if in good shape). You might want to do a little research on that. Just a guess on my part.
If you want a bike with more of a race geometry i think you would be hard pressed to get one as good as the 9 for maybe a $200 difference. That's just my 2 cents. Not sure if the 105 is 5600 or 5700, either way it will be better than sora.
Last edited by Elduderino2412; 05-21-13 at 02:02 PM.