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Two chain questions

JameyJamey Posts: 2,152
edited April 2008 in MTB workshop & tech
1) What is the difference between the SRAM PC68 chain and the SRAM PC850 chain?

2) Do you guys use a chain wear tool to check the wear or do you just use a ruler?


  • nicklousenicklouse Posts: 50,675 Lives Here
    the 68 is an old chain and the 850 is low mid chain.

    and some times.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • stumpyjonstumpyjon Posts: 4,069
    Chain wear tool is the easiest way to check a chain (no mistakes either), wished I had more often with my last chain, might have avoided a new cassette and chain rings (although it did give me an excuse to upgrade from a Deore to XT cassette :lol: ).
    It's easier to ask for forgiveness than for permission.

    I've bought a new bike....ouch - result
    Can I buy a new bike?...No - no result
  • Wear wise I just go by how much 'twist' you can get. If you are at (or even close to) 270 degrees and over then I'd get a new chain! I'm hanging onto mine ATM, and it is over the 270 mark... still works just about!
  • ride_wheneverride_whenever Posts: 13,279
    is that over then entire chain?
  • Yes :-)
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