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  1. #1
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    12-36 cassette hitting spokes on my Flash 29er




    Has anyone noticed this?

    Building it, I heard a funny clicking only when freewheeling on the workstand.

    When I actually ride it, the cassette moves a little, and it seems like the chain is skipping. I know that I am pulling the spokes when I sit on the bike, so I wonder.

    Could it be the Sun Ringle hub? Or is it these little tabs on the inside of the cassette?

    I am going to file these knobs down, but anyone notice this?

  2. #2
    LA CHÈVRE
    Reputation: Dan Gerous's Avatar
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    The little tabs are there to prevent a jammed chain between the cassette and the spokes... but it does look like they contact. But if the cassette moves sideways a little, I'm thinking that this hub and cassette combo might be supposed to use a spacer behind the cassette... Maybe?

    DAN.GEROUS.NET : MOUNTAIN BIKING : CYCLOCROSS : ROAD :

  3. #3
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    i will check later tonight when i get home, im running a 12-36t on hope pro 2/flows 29er wheels, i never noticed that when i put the wheels together...

  4. #4
    I want to ride
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    I have the same issue with my 2010 Cannondale 29er 1. I am pretty sure I have the same rear hub as your photo. I am running a XT 11-32 cassette. I tried the spacer idea but it made it harder to engage the lockring. I will probably grind down the little nubs. I am not worried about my chain falling into my spokes. I will make sure to adjust the limit screws.

  5. #5
    FIRENZE rulez !!
    Reputation: eliflap's Avatar
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    with Sram XX 11-36T on a 29" ZTR rear hub laced to 355 29er rim , no issues like this

    but XX has not the rear tabs on 36T cog

  6. #6
    bike rider
    Reputation: Lelandjt's Avatar
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    Some freehubs like to have a thin steel spacer put behind the cassette. Since your lockring tightens and the cassette stays loose you have one of these hubs.
    Keep the Country country.

  7. #7
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    i had the same problem with the same hub. the smallest spacer wouldn't allow the lockring to engage and tighten. my solution was to dremel the tabs off

  8. #8
    bike rider
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    I'm talking about a VERY THIN steel spacer. It's like 1mm thick. They come with AmClassic hubs.
    Keep the Country country.

  9. #9
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    BTW, I went to the LBS and used their bench grinder to take down the tabs.

    I ground them down about half and my clicking/rubbing problem has gone away.

    I did think about using another cassette, but I realized it probably has the same tabs as well.

    I think the problem is the 29er wheel. The spokes are less angled from the flange than a 26 inch wheel, so they are closer to the cassette.

  10. #10
    ~Disc~Golf~
    Reputation: highdelll's Avatar
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    Just leave it, they'll eventually rub enough material off and the noise will go away.
    Honestly... ahh I give up

  11. #11
    mtbr member
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    Quote Originally Posted by highdelll
    Just leave it, they'll eventually rub enough material off and the noise will go away.
    BTW, it was so bad, the cassette was turning with the wheel when I wasn't pedaling, which pulled the chain and made the derailleur cage hop.

  12. #12
    ~Disc~Golf~
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    Quote Originally Posted by sanjuro
    BTW, it was so bad, the cassette was turning with the wheel when I wasn't pedaling, which pulled the chain and made the derailleur cage hop.
    completely normal.
    Honestly... ahh I give up

  13. #13
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    Quote Originally Posted by highdelll
    completely normal.
    I bet you think that the fact your p---- is two inches long is perfectly normal too.

  14. #14
    ~Disc~Golf~
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    Quote Originally Posted by sanjuro
    I bet you think that the fact your p---- is two inches long is perfectly normal too.
    who told you about my p----?
    Honestly... ahh I give up

  15. #15
    Sup
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    ok where did you get that cassette
    looks like xt and I did not know they made a 36-12
    on my 11-34 I ground off the tabs shorter

  16. #16
    bike rider
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    11-34 is a wider spread than 12-36. It's also lighter and allows smaller chainrings for more clearance. 11-36 would be a big spread.
    Keep the Country country.

  17. #17
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    Came stock on the flash

  18. #18
    Sup
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    nice
    need one of them for my chicken legs

  19. #19
    bike rider
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    Quote Originally Posted by sanjuro
    Came stock on the flash
    Surprising no one at Cannondale noticed the problem. Did someone from the shop ask the rep about it?
    Keep the Country country.

  20. #20
    Uber V Cripp
    Reputation: jdcamb's Avatar
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    Flash Ahhhh! Ahhhhh! I would have tried a casette spacer.

  21. #21
    mtbr member
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    Quote Originally Posted by Lelandjt
    Surprising no one at Cannondale noticed the problem. Did someone from the shop ask the rep about it?
    Who do you think told the rep?

  22. #22
    USED2COULD
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    same thing happened to me when i rebuilt my rear wheel on my 09 29er 1.

    i re-dished the spokes away, but I'd rather grind off the tabs.
    '12 Jet 9 RDO 22.9 lb
    '14 Rip 9 | Pike 140mm 26.6
    10 Sanderson Soloist 23.8 lb Stolen
    '09 Hammer 29'er 20.5 lb

  23. #23
    I want to ride
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    Tabs are ground. No more rubbing, easy solution.

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