Thread: knee problems
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Old 07-10-09, 04:26 AM
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gurry
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Bikes: 1987 bianchi campione d'italia, 1970's eatons glider, 1990's hybrid, 1992 trek antelope

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You could try out a bike equipped with biopace chainrings. Shimano marketed these in the late 80's to early 90's. It should have a little yellow sticker on the outside ring saying Biopace.
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