All chain sizes are going to be even numbers 110, 112, 114, etc. You will never have an odd number. I don't know if there were any changes made for 05 regarding the drive chain, but my Clymers book says that 2001 and on bikes take a 112 links. My book only references up to 2003 though. You can always cut links off. If you are still not sure, just count the pins on what you have now.
Jason