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Old 10-10-11, 08:16 PM
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Originally Posted by cyqlist View Post
118mm is SR Apex, not Zeus. Zeus was 119mm and unique. Why is it so hard to find a really complete BCD reference chart? I've never found one.
Ofmega also used 118mm BCD on some models. Zeus was 120mm BCD, at least the six cranks and 2 dozen+ Zeus chainrings I have here are 120mm BCD.

Sutherlands 3rd/4th edition has a fairly comprehensive BCD chart for vintage cranks.
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