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  1. #1
    rjx
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    Can I use Surly Splined Cogs with the Kona Unit?

    I have a 2014 Unit.

    I put an order in for a bunch of Surly cogs, all splined. It has come to my attention that I might have an issue trying to get these cogs to work.

    Did I buy the wrong cogs?

    Here's a link to the 18t cog I purchased. Surly Single Cassette Cog 3/32" Splined 18t

    Thanks.

  2. #2
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    Can I use Surly Splined Cogs with the Kona Unit?

    My 2012 unit uses splined cogs on a threaded SS hub. I think the 14s are the same.


    Sent from my hammock
    "Your opinion may vary, but it's stupid." -Rich Dillen

  3. #3
    rjx
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    Thank you for the reply.

    When I ordered the cogs, I also ordered the following tools. Will I need to buy any other tools to be able to swap the cog? I'm a total noob.

    - Park Tool CC-2 Chain Wear Indicator
    - Park Tool SR-11 Sprocket Remover Chain Whip: 11-Speed (will this will be okay for Surly cogs?
    - Park Tool CT-5 Compact Chain Tool
    - Park Tool CNW-2 Chainring Nut Wrench
    - Park Tool FR-5 Hyperglide Cassette Lockring and CenterLock Disc Remover

    Thanks.

  4. #4
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    Splined or threaded

    rjx,

    your hub is either a freehub body for splined cogs and spacers, or it's a threaded hub for screw-on freewheels. I'm not sure what Paul is describing as I've never seen splined cogs for a threaded hub. Look at your set-up: is it just a cog with spacers or a single speed freewheel?

    I may be missing something in your post. Post a picture of your set-up so we can give you sound advice.

  5. #5
    rjx
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    Hi patirwin

    Other than my pedals, my Unit is stock with no upgrades.

    I'll try to upload a picture shortly.

    Thanks

  6. #6
    rjx
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    I didn't clean and lube my chain after today's long, dusty ride.



  7. #7
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    rjx,

    I can't tell what it is and after calling 2 Kona/lbs shops here I got 2 different answers, so I would call your local dealer to get an answer. Single Speeds should be simple and it's crazy that your question doesn't have a simple answer. Please let me/us know what you find out. Curiosity is killing me...

  8. #8
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    Re: Can I use Surly Splined Cogs with the Kona Unit?

    Quote Originally Posted by rjx View Post
    I didn't clean and lube my chain after today's long, dusty ride.


    Looks like a SS cassette hub to me. Narrow steel cog, external lockring. Pretty standard Formula stuff, which is what the Kona site says it is.
    The Surly cogs should slide right on, with some of the stock spacers removed.
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  9. #9
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    Shiggy,
    I think you're right but the Kona site says Formula freewheel 18t, and 2 different Kona shops in Alaska gave me different answers, so he needs a solid answer from someone who knows for sure. Sorry I couldn't be more helpfull

  10. #10
    Fat!Drunk!Slow!
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    Pat, just happens to be a splined SS freehub with an external lock-ring. A C-Spanner or specific lock-ring tool un-threads the lock ring and splined cogs and spacers slide off and on. You also need a chain-whip.

    Another picture from a big-unit:


    And another random:

  11. #11
    rjx
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    Thanks everyone.

    I ordered
    Park Tool SR-11 Chain Whip
    Park Tool HCW-17 Fixed-Gear Lockring Wrench
    And other stuff

  12. #12
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    Re: Can I use Surly Splined Cogs with the Kona Unit?

    Quote Originally Posted by patirwin View Post
    Shiggy,
    I think you're right but the Kona site says Formula freewheel 18t, and 2 different Kona shops in Alaska gave me different answers, so he needs a solid answer from someone who knows for sure. Sorry I couldn't be more helpfull
    AFAIK Formula does not make freewheels. I have never seen or heard of one.
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  13. #13
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    I have an '09 unit, the hub and lockring looks the same. I have a few surly cogs (a 14, 16, 18, 20 and 22) that i swap around depending on the terrain, my guess they will work fine.
    To appreciate the flowers you must also walk among s**t to know the difference

  14. #14
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    I've bought those and they work. I'm running a 2014. However I didn't get all those tools. I'm sure they will be nice to own but you could just use a flat screw driver and hammer to tap that ring loose Just a thought.

  15. #15
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    Re: Can I use Surly Splined Cogs with the Kona Unit?

    Quote Originally Posted by DPeper View Post
    I've bought those and they work. I'm running a 2014. However I didn't get all those tools. I'm sure they will be nice to own but you could just use a flat screw driver and hammer to tap that ring loose Just a thought.
    Channel lock pliers are a much better substitute than the hammer and chisel. Still need a chain whip. When you have the bike, the proper tools are a cheap investment.
    mtbtires.com
    The trouble with common sense is it is no longer common

  16. #16
    Armature speller
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    The only thing as good as more bikes, is more tools.

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