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Thread: Cogs...

  1. #1
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    Cogs...

    Right.

    I'm building a singlespeed DJ with a Hope ProII SS rear hub. I figured this would be the place to go for recommendations on where to buy cogs for said hub. Preferably in the smaller tooth counts

    As an aside - I'm completely new to the single speed world. The hub came with spacers, but will I need a lockring too? Or can I just have some spacers with a cog and the bolt on the dropouts on the end (it's the 10x135 bolt type)?

    Cheers all!
    Let's take Colorado and go chill with the British Isles.

  2. #2
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    you will need a lockring, your LBS may have one left from an old worn out cassette, or you might have one in your own parts box. look at Surly cogs, work great and won't chew up the AL freehub body. The Surly cogs are avail in every size from 13-22t
    Quote Originally Posted by thefuzzbl
    aluminium has a tendency to fail when you need it most. i.e. you end up with a bad day.

  3. #3
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    Quote Originally Posted by PacificPilot
    Preferably in the smaller tooth counts
    Bigger = better
    Ride more!

  4. #4
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    Quote Originally Posted by asphaltdude
    Already ordered a nice, small 25t chainring up front. At least it's 7075 T6 so hopefully it won't fall apart immediately. And you can rotate the mounting position.

    http://www.deitycomponents.com/termite_sprocket3.htm if you're wondering.

    If I ever build a non-DJ or BMX singlespeed then I'll follow the Surly peeps' advice...

    Forgot to say thanks for the link!
    Let's take Colorado and go chill with the British Isles.

  5. #5
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    Word. Boone Nothing better.

  6. #6
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    Surly cassette cogs. And as mentioned, you will need a cassette lockring to keep it in place.

  7. #7
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    Quote Originally Posted by scooter916
    you will need a lockring, your LBS may have one left from an old worn out cassette, or you might have one in your own parts box. look at Surly cogs, work great and won't chew up the AL freehub body. The Surly cogs are avail in every size from 13-22t
    FYI, the Hope Pro II SS hub has a steel cassette body.
    Better to have and not need it, than to need it and not have it.

  8. #8
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    Quote Originally Posted by r1Gel
    FYI, the Hope Pro II SS hub has a steel cassette body.
    One of the reasons I chose it
    Let's take Colorado and go chill with the British Isles.

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    Quote Originally Posted by r1Gel
    FYI, the Hope Pro II SS hub has a steel cassette body.
    Mine is aluminum.

  10. #10
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    Quote Originally Posted by croscoe
    Mine is aluminum.
    Really? That's weird...I was under the impression all the SS ones came with steel freehubs...

    From the Hope catalog pdf thingy...

    PRO 2 TRIALS/SINGLE SPEED
    BOLT AXLE

    SPEC:
    CNC machined in Barnoldswick, England
    Built and hand finished in UK
    Bearing type: Cartridge
    (61903, 61802, 61902)
    Hub Body: 2014 T6 aluminium
    Colours: Silver, Black, Red, Blue, Gold & Gunsmoke
    Hole Drilling: 32, 36
    Cassette body: Steel
    Ratchet type: 4 pawl (48t engagement)
    Weight: Rear 361g

    What year is yours?
    Let's take Colorado and go chill with the British Isles.

  11. #11
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    Quote Originally Posted by PacificPilot
    Really? That's weird...I was under the impression all the SS ones came with steel freehubs...

    What year is yours?
    If I'm not mistaken, the Pro II SS/Trials rear hub is a new product (2008?).
    Better to have and not need it, than to need it and not have it.

  12. #12
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    Very possible, I am an SS virgin so i'm not sure.
    Let's take Colorado and go chill with the British Isles.

  13. #13
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    Quote Originally Posted by r1Gel
    If I'm not mistaken, the Pro II SS/Trials rear hub is a new product (2008?).
    My Pro 2 SS/Trials hub is at least 3 years old, so they been around for a while.
    The body is steal and I've only seen AL bodys for the standars Pro 2 hub, so far...

    Quote Originally Posted by Juanmoretime
    Word. Boone Nothing better.
    I've contacted the guy and he is not even taking orders any longer

    If you do not care about weigth just buy a cog with a wide base to save the body and check that the teeth are not to wide for you chain. Generally there are 3 sizes, from very wide 3/16, middle 1/8 and narrow 3/32 (7-9 gears)

    If you have trobble finding one there are quite a few brands in shops that carry Trials stuff e.g. www.tartybikes.co.uk

  14. #14
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    I've been happily using On-One's Groove Armada steel cogs but I am not sure how small you can get.

    The lockring I had left over from a Deore cassette works perfectly on my Pro 2 SS/Trials hub.

  15. #15
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    Quote Originally Posted by twestis
    My Pro 2 SS/Trials hub is at least 3 years old, so they been around for a while.
    The body is steal and I've only seen AL bodys for the standars Pro 2 hub, so far...


    I've contacted the guy and he is not even taking orders any longer

    If you do not care about weigth just buy a cog with a wide base to save the body and check that the teeth are not to wide for you chain. Generally there are 3 sizes, from very wide 3/16, middle 1/8 and narrow 3/32 (7-9 gears)

    If you have trobble finding one there are quite a few brands in shops that carry Trials stuff e.g. www.tartybikes.co.uk
    Have you tried here?

    http://www.singleandfixed.com/shop/c...ram=cid%3D2%26

  16. #16
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    Quote Originally Posted by Juanmoretime
    Thanks a lot!
    I've searched the web extensively for Ti cogs and totally missed that page

  17. #17
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    Now I'm in flow :-)
    Also found these guy's www.actiontec.us/prices.htm that offer Ti SS cogs, 17-22T but at a higher price then Boone...

    Previously I found www.cycle-dynamics.com/ but they do not respond to email and the site looks kind of old.

  18. #18
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    $85 for a cog? Shove it!

    Here's a shot of the aluminum cassette body. Notice the grooves from the '6 speed' cassette:


  19. #19
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    As I'm sort of a WW an Alu SS/Trials body caught my interest but according to Hope they do not manufacture an Alu SS/Trials body as they would be too weak.

    Quote Originally Posted by croscoe
    $85 for a cog? Shove it!

    Here's a shot of the aluminum cassette body. Notice the grooves from the '6 speed' cassette:


  20. #20
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    Check out Rennen Design Group cogs: http://www.rennendesigngroup.com/Cog_Desc.htm

    They have a thick spline interface to prevent hub damage. They are really light, affordable, and look great. PricePoint has them as well.

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