03-18-2008, 09:51 AM
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#26 (permalink)
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Batman Junior
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,530
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It's just that my dad has one of those bendy bikes (foldable) with springs in the seat, and a certain pedal RPM seems to hit the natural frequency of the springs and all hell breaks loose! You start bouncing up & down, feet flying off pedals, life flashing before eyes...
I guess his springs are worn out or too soft.
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