trying to sort out a road bike im building up.

the bike orginally states that it came with "Shimano 600 Ultegra Dual Pivot brakes, Shimano 600 Ultegra levers". I am not sure if these are short reach or not. If got a wheelset that isnt the stock set that ive mounted on the bike and i have set of shimano 105 calipers ive tried throw on the bike just to see if they would fit. They appear to be standard reach calipers but the braking surface doesnt line up with the pads. the pads over reach the braking surface by about a pad width. Needless to say these wont fit.

IM wondering if i what i need are short reach calipers or somthing differnet altogether?