when to change a chain?

HillClimber101
HillClimber101 Posts: 149
edited May 2009 in Road buying advice
some where i read you need to change a chain evry 1000 mile's, another place said if you can lift it up 2/3rd's of the chainring when do i change it?

also what tools do i need to change the chain?

and what 9 speed chain could somebody advise?

Comments

  • maddog 2
    maddog 2 Posts: 8,114
    chain checker

    http://www.chainreactioncycles.com/Mode ... delID=5784

    5784.jpg

    as for chains, KMC X9, SRAM PC971 or if you're feeling flush PC991 hollowpin

    CRC has them.
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
  • From the late Sheldon Brown:

    Measuring Chain Wear

    The standard way to measure chain wear is with a ruler or steel tape measure. This can be done without removing the chain from the bicycle. The normal technique is to measure a one-foot length, placing an inch mark of the ruler exactly in the middle of one rivet, then looking at the corresponding rivet 12 complete links away. On a new, unworn chain, this rivet will also line up exactly with an inch mark. With a worn chain, the rivet will be past the inch mark.

    This gives a direct measurement of the wear to the chain, and an indirect measurement of the wear to the sprockets:

    * If the rivet is less than 1/16" past the mark, all is well.

    * If the rivet is 1/16" past the mark, you should replace the chain, but the sprockets are probably undamaged.

    * If the rivet is 1/8" past the mark, you have left it too long, and the sprockets (at least the favorite ones) will be too badly worn. If you replace a chain at the 1/8" point, without replacing the sprockets, it may run OK and not skip, but the worn sprockets will cause the new chain to wear much faster than it should, until it catches up with the wear state of the sprockets.

    * If the rivet is past the 1/8" mark, a new chain will almost certainly skip on the worn sprockets, especially the smaller ones.
    Wanna go for a ride? :)

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