99 percent of the time I am the granny gear hill climber but upon occasion I do stand, especially on long rides. What I don't see mentioned here is to realize when you stand you are probably going to want to gear down first. Trying playing with different (slightly harder gears) as you stand and see if that helps. If I stand in to easy of a gear I totally fell it in my quads.
Sky King
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Gilles Berthoud "Bernard"
Surly ECR "Eazi"
Empowering the Bicycle Traveler
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