I have 160mm brakes that are post or have the adapter for IS. I already have the front brakes mounted. They are Spyres just like yours. The spacing of the two holes on the frame is much narrower than the spacing on the brakes. The holes are not threaded either. It sounds suspiciously like they shipped my bike with the same mount they originally shipped yours with. I likely need the piece yours is pictured with.
Last edited by Paul Barnard; 08-15-18 at 05:59 PM.