Old 02-27-12, 07:55 AM
  #3  
pennstater
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Join Date: Mar 2007
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Bikes: Look 765 Gravel RS, Lynskey Cooper CX, Lynskey R260

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Could be the pawls in the freehub not properly engaging, then slipping and re-engaging. I only know this happens on my Shimano and Mavic freehubs. I've been able to minimize it by cleaning and oiling the internal parts regularly on the Mavic. Haven't done the freehub on the Dura Ace hub.
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