
Originally Posted by
emily_in_nc
Actually, this advice can be a little dangerous. You should shift your front chainring before you run out of gears in back. If you are in your middle chainring and shift all the way to your largest cog (or sometimes even second largest) in back before shifting to "granny" in front (if you need it), you have a very good chance of dropping your chain to the inside. Been there, done that! It will stop you dead on a climb, making it very hard to get going again once you stop and put your chain back on. Much better is to shift in front only when you're, say, on the third cog in back. It puts much less stress on your drivetrain and you are much less likely to drop your chain.
That's why I said it was overly simplified. Doing what I suggested one time would show the rider that she needed to be in a couple of gears harder in the back (smaller cog). So once she got to the biggest cog she would then know to shift up two gears before droping down into her smallest chainring. This would then naturally lead into knowing when to shift into her smallest chainring without doing the double shifting....a learning process.
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