What size front tire are you running?

I was replacing the Giordana tires w/ 700 x 23's and the front rubs the caliber. The back isnt an issue. I checked the tires I removed and found there was a 20c on the front with a 23c rear. I've tried 3 different 23's with luck.

Am I stuck w/ 20's?

you have enough clearance on the fork crown? this brakes have a slot so they can be adjusted up and down. I normally use tubulars on the bike mine are mounted on so I never had an issue

The fork crowns not an issue. Are you saying I can reposition the center bolt to raise the caliper?

I know that I'm running a 23c front with a delta brake. I haven't worked with it much so can't tell you anything about adjustments. If memory serves, one of the mods is an expert on Deltas and offered me a lot of helpful advice on it.

I would be surprised if you didn't manage to make 23's work. You can adjust EVERYTHING on a campy delta caliper. You can even get them to actually brake. Trust me, there's at least one screw on or in them you don't yet know about.

Try what Bianchigirl said, sounds good.

Mine actually brakes now. I gave up working on it (read messing it up worse) and had a local shop with a very good wrench work on it...it's now one of the strongest brake sets I've ever used. I wouldn't buy them for a build based on the hassle and weight, but they are definitely cool and unique...and apparently they can work well when adjusted properly.

BG, thanks, you nailed it dead on! Sure enough, all you have to do is lossen the fixing bolt and the entire caliper can moves up and down. I've already moved the caliper up and repositioned the pads. They can easily clear 25's in the highest position, but there's no way 25's willl clear the pads for wheel removal.

My Deltas stop real well. With proper cables and pad alignemt I see no reason why they wouldnt.

your welcome. glad to help

Yes. the back of the caliper is slotted so the entire assembly can move up or down:

Delta's actually work very well with slightly wider tires, even to remove the wheel. You do need the correct levers however that have a sliding rod Q/R mechanism. Delta brakes also tend to work better with slightly wider rims and not the very narrow ones. I set my brakes up in such a way that the levers get as close to touching the handlebars as possible without actually touching when bottomed out. You can then get good leverage with two fingers.