I actually installed Juicy Three's (stock spec'd for 160) on a Cannondale that was equipped with the 4 bolt setup. The front rotor is 180 and the rear is 140. Ridiculous. Couldn't replace them so I had to experiment with a few different mounting brackets to get the calipers lined up properly, but with the right parts you will be able to set it up. I wish I could give you a part number for the brackets I used, but the ones I wound up using were not labeled so I don't even know myself. The rotors themselves are a hair wider, but did not pose a problem and the brakes set up perfectly.