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  1. #1
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    New question here. head tube length and steer tube length

    I have a Large Banshee Rune and the headtube length online states 4.9" long.

    Can I run a fork with a 7.6" steertube and still have enough room for a few spacers?
    I'm thinking I'd be safe...but I usually use 8" as my rule.


    What's the rule of thumb in terms of absolute minimums?

    thanks in advance.

  2. #2
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    If those measurments are acurate, then you would have 2.7" of steerer to play with. Thats probably plenty, but to be sure. You should figure out the stack height of your headset, stem and spacers you want to use and add that to the 4.9" headtube and see if your steerer will work.

  3. #3
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    Quote Originally Posted by fuenstock View Post
    If those measurments are acurate, then you would have 2.7" of steerer to play with. Thats probably plenty, but to be sure. You should figure out the stack height of your headset, stem and spacers you want to use and add that to the 4.9" headtube and see if your steerer will work.
    +1

    math - it works!

  4. #4
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    According to Banshee's website, the frame's for zero stack headsets so you'll lose about 0.3" - 0.5" to the headset depending on which one you use. Stems are usually about 1.5" - 2" high so depending on how you go you'll have 0.2" - 0.9" left over for spacers.

  5. #5
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    What Headset and stem? Typical external headsets are around 25-30mm overall stack. And most stems I use are around 40mm tall.
    Raised in a Chicken-Coop by Chickens

  6. #6
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    Quote Originally Posted by Sheepo5669 View Post
    What Headset and stem? Typical external headsets are around 25-30mm overall stack. And most stems I use are around 40mm tall.
    not sure yet...that's the problem.
    i would like to use my cane creek XX?? but will likely buy a new one if zero stack is required for that frame. I want to buy a fork first...but should probably focus on my headset.

    I'm pretty sure I can get away with a 7.6" steer tube...but if I buy the fork and it doesnt work out I'll have to buy something else...not good.

  7. #7
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    Lets think about this logically. I prefer metric.

    4.9 in headtube= 125mm
    overall headset stack=28mm(high end of average)
    Stem=45mm(high end of average for XC, I dont know about AM)

    Total is 198mm or 7.79in

    So with a external headset, it will NOT work.

    Lets try a Zero Stack...

    With a "zero stack" headset we will substitute about 12mms for the previous 28mm.

    125+12+45= 182mm or 7.16 inches.
    This WILL work.
    With a 12mm stack headset and a 45mm stem, you will have about 11mms of spacers to play with.
    Find a lower stack stem, and you will have about 5 more mms to play with.

    Hope this helps!
    Raised in a Chicken-Coop by Chickens

  8. #8
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    it certainly does help...it tells me to stick with my 8" steer rule since i like the option of playing with spacers to change the feel.

    thanks for this feedback.

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