The Dia-Compe alloy for the calipers on the run of the mill centerpulls is a bit softer relative to the Wienmann. Easier to adjust the toe in.
Joe Bender-Zanoni
Great Notch, NJ
> As seen on this bike on ebay (dia compe braze-on centerpulls):
>
http://ebay.com/
>
> i have 27 lbs of weinmann & dia compe 610 centerpulls in my garage.
> the only difference between a weinmann caliper and a dia compe caliper
> is the fact that the weinmann springs wrap 2x at the maximum, and dia
> compes wrap 3x at the maximum. both springs terminate without
> bending, like coiled rope laying flat. Otherwise, weinmann and
> dia-compe differ only in badging and brake pads.
>
> The brakeset in the picture clearly has 3x wrap, like dia compe, but
> the termination does not lay flat, it goes into hole inserts. This is
> not a normal dia-compe spring.
>
> This is not a 1970's era dia-compe caliper. You can see a beveled
> area between the mounting bolt and the pad bolt that is atypical.
>
> - Don Gillies
> San Diego, CA