Originally Posted by
rvdv
crank length= (1.25 x inseam in cm) + 65
According to the formula, I should be riding 167s. I put 165s on the UO-8 to reduce toe-to-tire overlap, and I have 170s or 171s on all of my other bikes. For folks who have always wondered why older Sugino cranks came in a 171mm length, note that 6-3/4", a traditional British crank length, works out to about 171.4mm.
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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