I hope it goes without saying that these brake arm extenders affect geometry and "feel" of the brake. They will --> increase the hand grip force required for a given force on the rim. --> decrease lever travel relative to brake arm travel --> increase the likelihood of chatter/squeal.
I regard them as a factory kludge, a solution for desperate situations when nothing else works. I could see using them, for example, on a drop frame rear to allow a sidepull to be used. After all, rear brakes don't do much, and this might let Her Daintiness think that the rear brake works (please pardon the tongue-in-cheek chauvinism here).
But in lots of other applications, especially front brakes, I'd be a lot more comfortable substituting a longer centerpull for a short sidepull plus extenders.
And, I have been guilty of filing brake pad slots just a little bit on very rare occasions when I just HAD to make a Universal 61 work when I'd changed from 27" to 700c.
harvey sachs mcLean va usa.
Kurt Sperry had written:
>> >> CLB made drop blocks from the '50s through to the '80s. They appear >> in the '75 and '84 catalogs as parts 108DAM and 108DNM. Photos: >> >> http://tinyurl.com/pgx9pl >> >> Kurt Sperry Bellingham, Washington USA >>
Thanks for the info. Kurt... the ones I had looked different, they
have a rectangular flat plate riveted in where a standard pad has the
bolt, with the bolt above the pad. This one you are showing in your
picture looks a bit sturdier... (I already sent mine on to a list
member who wanted them)
Thomas Seaman Portland, Oregon
U.S. of A.