Old 12-26-12, 02:58 PM
  #11  
FBinNY 
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Join Date: Apr 2009
Location: New Rochelle, NY
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Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

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Originally Posted by fietsbob
If you replace a new chain on a worn sprocket , it will wear quicker to fit the worn teeth,
, but as FB says ,
This is exactly opposite to what I said. "Chains wear sprockets, but sprockets don't wear chains".

While an old chain will rapidly age a sprocket, I don't believe the opposite is true. If you think about standard practice in the bike world, replacing multiple chains over the life of a single cassette, you'll see that it's consistent with my theory.

In 45+ years I have yet to hear a single explanation of how an older sprocket would increase the rate of chain wear. (for bicycles)
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