I have often thought about converting Weinmann calipers to the Mafac system, which allows tuning of the straddle cable length, and therefore the tradeoff between braking force and control lever travel. The other benefit is being able to use any brake cable for a straddle, instead of searching for the right double-barrel unit, which can be hard to find or expensive.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069