Wee Sprocket

gummomarx
gummomarx Posts: 64
in The workshop
The wee sprocket on my Shimano CS-HG500 10-speed cassette (11-34T) is causing the chain to skip on every chainring, so despite the cassette being less than a year old it is disappointing. I've tested the chain and it's in good order, ityself being less than a year old.

My question is: how can I be sure to buy the correct sprocket for the cassette?

Comments

  • pblakeney
    pblakeney Posts: 25,773
    Check that you are using the correct nut.
    Some 11 tooth cassettes require a specific (smaller diameter) nut.
    The above may be fact, or fiction, I may be serious, I may be jesting.
    I am not sure. You have no chance.
    Veronese68 wrote:
    PB is the most sensible person on here.
  • me-109
    me-109 Posts: 1,915
    It would be unusual for that to be worn out. I'd suspect hanger alignment or b-screw position.
  • gummomarx
    gummomarx Posts: 64
    First of all, thanks for your kind suggestions. I'm afraid my cup of shame runneth over. Something I've never seen before in all my years of cycling - a hardened disc of gunk firmly attached to the cassette lockring - can only mean the chain was bouncing off that.

    An extra unexpected occupational hazard in the life of a nature-loving photographer habitually in very dirty circumstances.

    Thanks again for your time and knowledge.

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