Join Date: Jul 2000
Bikes: 1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
Mentioned: 2 Post(s)
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The principal difference between a centerpull caliper and a U-brake is that the arms of the latter are designed to be mounted directly onto braze-on frame or stay bosses, without the traditional slightly flexible mounting yoke. U-brake bosses are mounted above the rims, in contrast to below-the-rim cantilever or V-brake bosses, and the brake control arms cross each other between the cable connection points and the pivots. U-brakes were popular on late 1980s mountain bikes with under-the-chainstay brakes, and they are now seen primarily on BMX machines, many of which erroneously have only rear-wheel braking.
If you do not mind a bit of repainting and expense, one option is to ask a competent mechanic to braze on a set of U-brake bosses.
"Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1981 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069