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Old 07-29-15, 11:29 PM
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Join Date: Nov 2004
Location: Netherlands
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Bikes: Wabi Lightning, fixed 13.6 pounds. Cera steel road bike Campy veloce 9s

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Sometimes the steel shield or cover behind the sprocket is dented or slightly buckled and engages with the rubber seal behind it, causing the hub to put power back into the sprocket and chain when in freewheel mode.
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