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  1. #1
    Dickhouse
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    Low-stack Height Headset - S.I.R.9

    I'm looking for the lowest stack height headset that works with a S.I.R.9. Does anyone have any knowledge on this? The FSA, Cane Creek, etc. all have so many options, it starts to get confusing very fast.
    Something with wheels and brakes.

    92Fifty' Race Team

  2. #2
    mtbr member
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    Crank Brothers is going to be the lowest.

  3. #3
    Dickhouse
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    Ritchey has the WCS Carbon press-fit that claims a 18mm stack height, and the Superlogic Zero which claims 12.1mm stack. Are either of these for integrated? Does not say on Ritchey's website.
    Something with wheels and brakes.

    92Fifty' Race Team

  4. #4
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    Pretty sure both of those are Zero-stack models and require a 44mm ID headtube. Your SIR9 has a standard 1.125" headtube and needs a headset with external cups. Of those, the Cranks Bros headsets are the lowest stack.

  5. #5
    Down South Yooper
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    You don't need an integrated HS, the SIR9 takes a normal pressed fit HS.

    I think Nater is right, the crank bros is going to be the shortest stack height, I think it saves 10-12mm over a king or CC.

    Plum
    This post is in 3B, three beers and it looks good eh!

  6. #6
    "Ride Lots" Eddy Merckx
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    Quote Originally Posted by DavidR1 View Post
    Crank Bros is the lowest.
    ^^this^^
    "Big Gulps huh?...Allllriggghhht....Welp, See ya later!"

  7. #7
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    Crank Bros is the lowest.
    CyclingCentralVa.org

  8. #8
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    But be careful - if you use a Crank Bros headset you might have issues with the adjuster knobs on top of your fork hitting the frame if the wheel is turned all the way.

  9. #9
    Just A Mountain Biker.
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    Holy thread resurrection...

    But since Crank brothers headsets are no longer available, what is the lowest available now? Same deal as the OP, external cup, 1 1/8th head tube. Thanks!
    MTBR: Your dad's online mountain bike forum.



  10. #10
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    Cane Creek Slamset.
    Attached Thumbnails Attached Thumbnails Low-stack Height Headset - S.I.R.9-img_20181020_010008.jpg  


  11. #11
    Just A Mountain Biker.
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    Quote Originally Posted by RS VR6 View Post
    Cane Creek Slamset.
    Pretty sure that wonít work on a standard head tube for a 1 1/8th steerer...would be great if I had a 44mm head tube....


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  12. #12
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    Quote Originally Posted by blaklabl View Post
    Pretty sure that wonít work on a standard head tube for a 1 1/8th steerer...would be great if I had a 44mm head tube....


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    44mm is "standard".

  13. #13
    since 4/10/2009
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    Quote Originally Posted by mack_turtle View Post
    44mm is "standard".
    34mm is the older "standard" for 1 1/8" steerers with external cup headsets.

    For this sort of thing, seeking out low-stack headsets is kinda pointless. You're better off flipping your stem upside-down if you need to drop your cockpit.

  14. #14
    Just A Mountain Biker.
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    Low-stack Height Headset - S.I.R.9

    Quote Originally Posted by Harold View Post
    34mm is the older "standard" for 1 1/8" steerers with external cup headsets.
    Ok then, I have the OLDER STANDARD.

    I understand what you are saying, but itís more an of an available steerer tube thing than it is a cockpit positioning thing.


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  15. #15
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    Quote Originally Posted by blaklabl View Post
    Ok then, I have the OLDER STANDARD.

    I understand what you are saying, but itís more an of an available steerer tube thing
    I've been in that boat a few times. I also spent hours going over QBP catalog each headset by headset and gathering information on the stack heights until I found the "magic" combo.

    Out of curiosity, what bar diameter and stem length are you currently on? BMX stems tend to have some pretty low clamp heights, maybe you could swap the stem instead?
    Deflated - buy parts to sell parts to buy more parts.. bikes are my drug of choice

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  16. #16
    Just A Mountain Biker.
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    Low-stack Height Headset - S.I.R.9

    22.2, yes that is a possibility as well.

    The short story is I got a great deal on a Fox fork for my rigid SS, but the steerer is just long enough to fit my stem and upper headset...it will work I just wanted a little flexibility.


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  17. #17
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    I'll try to grab a picture of my Klein Top Gun, but I have the sunrise bar on there with this DMR BMX oilslick stem. http://www.odysseybmx.com/dailyword/...-oil-slick.jpg

    Only problem I could see would be the length, if that matters to you. For me, I wanted to shorten that thing up for that nice upright cruiser feel.
    Deflated - buy parts to sell parts to buy more parts.. bikes are my drug of choice

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  18. #18
    Just A Mountain Biker.
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    Awesome, I only need 50mm. Appreciate it if you can get me a pic!




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  19. #19
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    Low-stack Height Headset - S.I.R.9-salt1.jpg

    Having problems uploading the full bike.
    Deflated - buy parts to sell parts to buy more parts.. bikes are my drug of choice

    FATTrailer for the kiddo

  20. #20
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    Low-stack Height Headset - S.I.R.9-p5pb16656790.jpg
    Here is the whole bike. Had to post it over on PB before I could add the image - weird.

    I measured the stem as well. Stack/clamp height of 30.38mm according to my calipers.

    ****Edit.. I know I know, its a cluster of cables up there. I didn't re-do anything when I swapped from the Surly Open bar and my vintage quill stem to this setup. I also think I should re-do the SS option on this. I had it disc front/v rear with a 36/17 for a while, very fun urban build ~24lbs.
    Deflated - buy parts to sell parts to buy more parts.. bikes are my drug of choice

    FATTrailer for the kiddo

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