>>1757644I had to swap calipers to go to a 19mm internal rim on the rear of my road bike
the i think 9spd 105 dual pivots would not fit it, but 10 spd 105 would, with room to spare. I also have 11spd 105 sitting on a shelf and see it has easily enough room.
This is a broad trend. Newer road calipers will take wide rims, older ones won't
