I had a problem with a rear Campag delta caliper squeeling, but resisted the temptation to toe-in the arms forcefully, due to their rigid construction, short length and suspect pivoting hardware, not to mention the expense since they're not mine.

I "leveled" the pad to the rim surface with beltsander paper held against the rim and rotated/rubbed in the foreward direction with brake applied, to abrade the pad itself.

This hasn't stopped the squeeling, and since the pads are thinning I hate to just grind down the pads on one end to effect some toe-in that way, since the upper ends of the arms protrude from the housing as the pad holders are pinched closer together using cable adjustment.

Has anyone here had this issue with these rare calipers?
Can they be safely bent into toe-in alignment w/o/damage?
Are there any correct or better pads to look for? (these ones look "tall" compared to the width of the rim's braking tracks, and secured to the holders with two setscrews each).

BTW, the squeeling persists after changing to a different rear wheel, but gotta admit that the humidity was also very high at the time.

Can you not set the toe in with the brakes? I have only owned one set of Deltas and, as I recall, you can set the toe in if you know how.

Take a look at the bottom of the procedure. There is a small picture that shows how to use an allen wrench to set the toe in.

I agree I never done but I thought you were able to do it. did you try some rubbing alcohol to clean the rims?

Aside from looks, the ajustibility is one of the coolest things about these calipers. I don't know if there's a suitable replacement pad, but the holders are definitely specific. They can be angled to match the rim face as well as toe-in, adjusted with the set screws front and back of the pad holders. Up and down is adjusted at the mounting bolt. Also note the pads should be set a little further from the rim than usual to make use of the mechanical advantage of these brakes. IMHO most of the "bad rep" these brakes get is due to poor (or with frustration with) set-up, the're finicky but once done right they are great performers.


pic stolen from Randy's site

Thanks a lot for all of the tips. I had no idea actually why there were two of those set screws on each pad, now I know.

I had wiped the rim with solvent, but since the rim had already been switched I suspected it wouldn't be the problem.

Good for me too though. I totally resisted the urge to toe in the pads in the usual manner, remembering an ebay auction for a pair of these that bore the tell-tale wrench scars. As I recall, the auction didn't go so well for the seller in that case.

Customer apparently wasn't so thrilled that the squeeling persisted. Good thing he doesn't read these tech threads, I'll just hafta tell him they all do this. :->), and so far it's the humid weather excuse which does at least have some merit. Maybe if he just rides his bike in the dirt more often the squeeling would go away.

Nooo! don't try bending those claiper arms. The Delta is not like a Weinmann 500 sidepull that one would normally use the bend your caliper arm method to toe in the pads. The Delta pad holders do have a swivel joint and toe in screws built into its mounting bolt assembly and pad holder channel that lets you toe in the pads as needed.......but only to some point. You do need to check if your brake pads are too worn down and if the holders are already toed in to their limits. If that's the case, you just need to change the pads for new ones to get rid of the squealing.

Chombi

As far as replacements are concerned Yokozuna do a pad + holder that fits & looks nice enough. Unfortunately they don't have the toe-in adjustment. I've fitted a set and they work well - no squeal thankfully.

I think this is the original thread that discussed them
https://www.bikeforums.net/showthread...roadshoes.html

I checked, and the pads on these Record Delta calipers didn't seem to have any swivel action at all when I loosened the 5mm Allen heads. There were only regular washers, one per side.

The holders did have the two set screws each.

Do the set screws push directly on the pads or on some backing plate?

I think new pads might be in order, but how to describe them and where to find 'em?

https://www.ebay.com/itm/BRAKE-PADS-C...item5d32ccf931

They're easy to get.