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  1. #1
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    How to Distinguish between the PG-830 and PG-850 SRAM 8 spd Cassette

    I hope someone with actual parts can help me determine if I have PG-850 or a PG-830 cassette? I made a weak attempt to search this forum. I also checked out the SRAM website and the only difference I can glean from SRAM 2008 Tech Manual is the weight (280g vs. 320g respectively) and the material for the cogs (SAPH 440 Steel vs.Steel respectively). I have access to digital scale, but I doubt it is accurate enough given part and scale tolerances. As for material, no clue. Is there something stamped on the part itself or a distinguishing feature? Any information or comments are welcome.

    Thanks for your help and get out and grind some gear(s) today!

  2. #2
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    I think that the cog screw cap is different colors for each type of cassette (silver vs. black)
    ... And I Am You,
    And What I See Is Me!

  3. #3
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    Follow up - weigh in

    I weighed the cassette and it came in at 274g. My lock nut is black, BTW. My guess it is a PG-850.

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