I have to have a reason to what something new?
I am replacing my cables and hoses so had it apart was the main thing.
Anyhow they are very narrow as it is considered a race bike lately I have ridden some bikes with wider bars and they do feel nice. They are flat bars with no sweep or very minimal. I barely have room for my computer or remote lock out on them.
So the change is basically because I can however being a little more comfortable would be nice.