Peter Signorini wrote:
"dave" wrote in message:


The story is that if the chain has stretched more than half way you must
replace both or it will skip. Borrow a wear guage to check or look for
the measurements on line. I forget exactly but its something like 12
links must not be more than so many inches. As always check Sheldon


12" of chain, when new, is 12 full links. If those 12 links are now 12
1/16" you will still be OK to put a new chain on without skipping. If it's
12 1/16" - new chain and cluster. More than 12 1/8" - scrap the chainrings
as well, IIRC.

Cheers
Peter



Hey nearly right