All it does is bring the rear wheel in a little closer which greatly increases the life span of your chain. How? By giving the adjusters more room to adjust the chain. With 114 links, you're about 1/3rd-1/2 way through the adjusters with a brand new chain. A 112 will cure that issue.
a 112 link will not adversely affect traction, wheel distance, blah blah blah. Its one link for crying out loud. its a bit less than what a full adjustment range gives you on the 919. If it was an issue, the Honda engineers wouldn't of designed the adjusters to have that much space to work with.
If you can fit in 112 links, DO IT.