Originally Posted by
capnjonny
... The 5 speed Suntour Freewheel has every other tooth ground down on the largest (32 teeth) cog. Any idea why that is? ...
The skip-tooth large cogs we claimed to improve downshifting. The idea became an evolutionary dead end with the advent of profiled teeth. The idea for skip-tooth may have come from the old inch-pitch or block chains, which were used with cogs with teeth one inch, instead of one half inch, on center.
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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