Old 06-11-19, 06:54 AM
  #3  
DiabloScott
It's MY mountain
 
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Join Date: Sep 2006
Location: Mt.Diablo
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Bikes: Klein, Merckx, Trek

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You want a thumbrule based on experience?

"Probably zero, might be one... maaaaaaybe two."

If your derailleur is REALLY tight in the big big, you'll probably need a new, longer chain. Else just wait and see.
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