I used to ride with a local LD champ who rode a 90" gear fixed in the mountains. I rode a 67" gear on our local 10% grades. I was the slowest climber in the bunch but I could do it. We all used about the same gear and were in our 50s.. Gear depends on how strong you are and to a lesser extent, fixed or SS. It's always a compromise, especially in a competitive group where your gearing makes a difference. Most of us can spin 135 or so for only so long..
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