My retro look would not be complete without my Abus disc-shaped lock and either a 4-pound case-hardened chain or a fat cable.
However, my only real security is to ride my Peugeot UO-8 beater for transportation, saving the more valuable hardware for rides which do not require me to leave a bike unattended. (I park inside the building at work, so commuting is not a problem.)
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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