Does anyone have any experience with something like these lovelies?http://www.fullspeedahead.com/fly.aspx?layout=product&taxid=21&pid=51I ask because it really is time to retire the ol' Ultegra 53x39, and I need something that will be easier on the knees. I admit it - I don't like the looks of triple chainrings, nor do I want to go through the whole nine yards of replacing bottom bracket/derailleur/shifter and whatever else is required for a triple. So the question is, does anyone know if the gear ratios on a compact crankset such as this will be sufficiently lower than the 53x39, 12x27 set up that I have now so that maybe I can do some of that magical spinning up hills and not have to resort to a triple?Thanks for any input,Renee
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