Actually, though no one mentioned it, the O-ring also helps prevent damage if the brake caliper comes into contact with the frame when parking or storing the bike. When choosing hardware store O-rings, be sure to get one small enough that it must be stretched onto the adjuster barrel, so the tension helps keep it in place. Of course if you have the original, you can just try to match it. BTW, anyone found a glue that will keep rubber O-rings in place without degrading the rubber? This isn't usually necessary with the proper sized O-rings on Campy calipers, but I've had trouble with the rings rolling off other sidepulls. SuperGlue will definitely dissolve rubber.
Regards,
Jerry Moos
>
> : Re: [CR]Campy brake question
>
>
> > David:
> >
> > I think that the rubber rings simply make gripping the adjuster easier.
> > There are some spare part vendors on the CR list who can probably get
you
> > NOS replacements. You can also try a local hardware store, where you
might
> > find something "close enough".
>
> Thanks all for the explanation.
>
> David Goerndt
> Orlando, FL