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@jayloo
Whoa! That's pretty high! I'm on 47/19 and that's still pretty high for certain hills. Was wiping me out on my commute. Also, I was unable to skid stop at that ratio until I went clipless. I still can't sustain a skid.
I don't know if anyone's told the newer people why to avoid the higher gear ratios; it's not just b/c it will be harder to stop and start, but b/c you risk doing damage to your knees (can develop bursitis or tendonitis) if you jump to a high ratio without building up the muscle for it first. My husband gave himself bursitis from too high a gear ratio on mostly flat NYC streets and was "grounded" for a month or two.