Yes... 2015 Defy 5... Blk n White with a lil yellow. To your point... it came with Claris and they upgraded 'some' of the components.
They are 5800's so they are matched with the 11-speed in the rear. Just means they aren't adjusted properly. The shifting was never smooth as in click/shift, click/shift, I just got used to it but never exactly what it should be.
I dont 'have' to upgrade the brakes. It's just the 105's would be a matched set. However, the pads do need to be replaced.
TY