Sunrace 10 speed 11-46 question- Mtbr.com
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  1. #1
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    Sunrace 10 speed 11-46 question

    My Sram X9 rear mech is currently handling a capacity of 39T (2X10) so 35T should be no problem. My question is can it handle the 46T sprocket when I go 1X10? Any one gone this route?
    As always thanks in advance.

  2. #2
    NedwannaB
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    Not sure how you're coming up with those numbers (other than 46-11=35) but I ran an 11/42t on my X9 not sure it will handle a 46.
    Ripley V1 XC/Gravel Adventure rig
    FS: Ripley V4 medium frame

  3. #3
    RAKC Industries
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    Its not the capacity thats a problem at this point. Its the derailleur design that cant handle the bigger cassette cog. And no it wont handle 46T. 42T is as big as it will take without serious shifting issues.

    Sent from my SM-G950U using Tapatalk
    Life on a bike doesn't begin till the sun goes down.


  4. #4
    NedwannaB
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    This^^^. Was going to add that in but was dozing off...
    Ripley V1 XC/Gravel Adventure rig
    FS: Ripley V4 medium frame

  5. #5
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    Thanks for your advice both, it saved me some wasted time and trouble. I wonder if my long cage Zee rear mech can handle the 46 cog instead?

    How did I arrive at 39? currently running 22 - 36 and 11 - 36.

  6. #6
    RIP Friendgirl
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    If you want to run that 46-11 sunrace cass, your best bet is a slx or xt 11sp derailleur with a shimano 10sp shifter.
    SPD pedals are an absolute menace to the well-being of the world, and ought be banned immediately.

  7. #7
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    There are a few places selling these big cassettes packaged with a Roadlink knockoff

  8. #8
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    Quote Originally Posted by Darth Lefty View Post
    There are a few places selling these big cassettes packaged with a Roadlink knockoff
    Iím running one of these knock offs with a sunrace 9speed 11-40.

    It works great, only problem Iím having is that removing the rear wheel is now near impossible. The cassette now wonít clear the lower position of the upper jockey wheel.

  9. #9
    BOOM goes the dynamite!
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    ^^^LOL, what?
    :nono: :thumbsup:

  10. #10
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    Sunrace 10 speed 11-46 question

    Yes, I know, itís hilarious...

    The tire bottoms against the chain stay bridge, as the cassette rolls down, and it binds on the upper jockey wheel. The wheel can not travel backward at all until you force it past the derailleur.

    Iíve already broken one upper pulley trying to get it out.

  11. #11
    BOOM goes the dynamite!
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    ^^^Ummmm...shift to the smallest cog first?
    :nono: :thumbsup:

  12. #12
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    Will it clear if you deflate the tire? Not ideal but easier than busting derailer parts.

  13. #13
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    Cage length determines tooth capacity. It is not directly related to the RD's ability to clear larger diameter cogs, which is governed by how far the top pulley is from the wheel axis. The B screw controls this to some degree. Longer B screws or third-party links (described above) that lower the RD can increase clearance. 1x RDs are designed to clear larger diameter cogs.

    Quote Originally Posted by SteveF View Post
    Will it clear if you deflate the tire? Not ideal but easier than busting derailer parts.
    Perhaps detach the RD from the hanger?
    Do the math.

  14. #14
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    Quote Originally Posted by SteveF View Post
    Will it clear if you deflate the tire? Not ideal but easier than busting derailer parts.
    Yes it will, that's what I've resorted to. But, like you said, not ideal...

    Quote Originally Posted by noapathy View Post
    ^^^Ummmm...shift to the smallest cog first?
    Yep, thanks. Not my first rodeo...

    Quote Originally Posted by Lone Rager View Post
    Cage length determines tooth capacity. It is not directly related to the RD's ability to clear larger diameter cogs, which is governed by how far the top pulley is from the wheel axis. The B screw controls this to some degree. Longer B screws or third-party links (described above) that lower the RD can increase clearance. 1x RDs are designed to clear larger diameter cogs.



    Perhaps detach the RD from the hanger?
    Understood. The problem is that the cassette clears the derailleur in the stock hanger with very little clearance. When I move the derailleur down with the generic link the arc of the cassette/axel rolls to the rear do to the arc of the tire rolling down off of the chain stay bridge... And yes, I could remove the derailleur.

    I know what's causing it, just saying be aware... However, it works as stated, shifts great, better chain wrap than maxing out the B-screw, and it nicely clears the 40t.

  15. #15
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    I recently installed a new sunrace 11-46 10speed with knock off link and a new kmc chain to my bike that has an existing 2013 X0 2.1 long cage rear derailleur and 2013 x9 shifter.

    It shifts just ok with the bscrew adjusted to clear the 46T. My old setup 42T wolf tooth extender and 16T cog shifts better.

    Let me know if you need any pics of it

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