Originally Posted by
John E
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As was pointed out, as soon as one gets to 9 or 10 cogs with corncob spacing at least at the high end, shifting becomes even easier to figure out, although I still see plenty of folks cross-chaining because they don't know how to obtain the same ratio on the other chainring, with a much better chainline.
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exactly what I'm missing, I think. I ride 12t-19t 8-sp on 3 bikes, with 53/39 up front, 172.5 cranks, so when I switch bikes it's about the same ride. My goal is not a cadence, in general, but to get back to 53/12t absolutely as soon as possible after a corner or hill. Corners aren't so hard, once you figure out how to carry speed through the line. I figure I'm missing something as I approach hills, because I'm only able to get "ahead" of the hill about 20% of the time. Getting "behind" the hill is a real pain in the acid (lactic) to overcome.
I'll take what I see here, do some more trial and error. I guess I'll have to chart my stuff first.
Thanks.