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Taz8 said:
I'm getting a new cassette and new crankset. Is it necessary to replace my chain as well? Thanks.
unless your chain is pretty much brand spanking new, I'd probably replace it. Someone is going to call me paranoid here, but i'd spend the 30 bucks to make sure it won't ruin my new cassette/cranks. There's a general rule to replace your chain when you replace your cassette.

If you want to be scientific about it (and possibly save 30 bucks) go ahead and measure the chain stretch. Do a google search, for what's in within the tolerable limit of chain stretch.

GL<

-don
 

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bang
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it it's old, replace it. no sense using an old chain with new chainrings and a new cassette. for what it's worth, you can measure the chain stretch using a ruler: measure 12 links, if it's longer than 12 1/16" long, replace it (new chain links are exactly one inch long).
 
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