Old 07-21-12 | 07:12 PM
  #4  
HillRider
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Joined: Aug 2005
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From: Pittsburgh, PA

Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!

Originally Posted by davidad
3/8" in 12! You will be lucky if the chainrings aren't toast. You will need a chain and cassette ast the minimum.

http://draco.nac.uci.edu/rbfaq/FAQ/8d.2.html
I have to assume the OP is measuring the entire chain's length. I don't think King Cong could "stretch" a chain 3/8" per 12" in only 4000 miles.
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