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  1. #1
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    Reputation: jimmay5469's Avatar
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    Groove Armada SS Cog

    Anyone use these cogs:
    On-One Groove Armada Single Speed Sprocket
    On-One Groove Armada Single Speed Sprocket

    How do they compare to a Niner or a Surly SS cog?

    For some reason the teeth just don't look as tall in the picture and I am also curious about why there are the grooves between the teeth.

    But, if they are about the same, they are a steal for $10 and I might need to load up on em...

  2. #2
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    I've got a 18T here that I got from the UK, paid twice as much. If the postage out of the US was more reasonable, I'd order several at $10 - but $23 postage to Canada.
    Haven't used it yet but looks good to me.
    Tooth depth/height is 6.11 mm. Don't have a Surly or Niner cog to compare.
    Not sure why the grooves are there, they are very shallow.

  3. #3
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    Grooves are to squeeze muck and grime out as the chain compresses into the cog.

  4. #4
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    I am running a 20T of these on my Summer Season. So far so good, as in unnoticable on the trail, thick at the base, I like the black color too...

    John
    On One Summer Season Single Speed

  5. #5
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    Have used these on my inbred. Was pretty invisible the whole time so yes it's good. Was using a Surly before and is about the same.

  6. #6
    local trails rider
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    Can't compare them to anything... They've been working well enough for me - as in no problems of any kind.

    "it IS possible that you are faster or slower than anybody else who is having at least as much if not more or less fun"

  7. #7
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    Awesome, thanks everyone!

  8. #8
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    I have alternately used Surly and Armada cogs from On-One. No complaints about either. CK cogs have tighter tolerances on the spline of my CK SS hub. But they all seem to function just fine without any damage to the spline.

    And I am learning that the customer service is so good at the Portland On-One/Titus store, I would prefer to do business with them whenever possible.

    Joe

  9. #9
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    Have a collection of those to fit the terrain I'm riding (17-18-20-21). No problems whatsoever.

    Forget the Niner cogs, they're crap. The alloy is too soft.

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