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  1. #1
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    Scalpel frame question

    a question for the 2008-2009 frames 100mm :

    can a frame work without the "bridge" between rear horizontal chainstays ?

  2. #2
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    Yes but it is going to increase torsional forces on the joints going in to the BB. So don't know how long it would last like that. Do you really want to do this or is this hypothetical question?

  3. #3
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    can i sense a new project in the in the making???

  4. #4
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    if i cut off that bridge , a 29er wheel will fit my rear Scalpel

    for vertical chainstays no problem , no bridge

    for seat tube , enough clearance , over 50mm

    for the horizontal chainstays only 22 mm ( about , a one hand measure )
    Attached Thumbnails Attached Thumbnails Scalpel frame question-img_0577.jpg  

    Scalpel frame question-img_0579.jpg  


  5. #5
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    Quote Originally Posted by parkincake
    can i sense a new project in the in the making???

    how a Scalpel 26" frame work with 29er wheelset and a 29er converted Lefty ?

  6. #6
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    this is the bridge i want to cut off

    or maybe just remove and reglue closer to the BB , cutting it in a half and reducing it to the minor spacing
    Attached Thumbnails Attached Thumbnails Scalpel frame question-dscn0905-1q.jpg  


  7. #7
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    I think it can work, especially removing and re-gluing closer, I cant wait to see how this goes!!

  8. #8
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    I wouldn't remove it.

    Regluiing closer could be a possibility but removing, no.
    But then repositioning won't be easy as it will be too large to fit closer, will have to find alternative.

  9. #9
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    Quote Originally Posted by MirFlash
    I wouldn't remove it.

    Regluiing closer could be a possibility but removing, no.
    But then repositioning won't be easy as it will be too large to fit closer, will have to find alternative.
    I believe bonding will be a challenge, too. AL is not the easiest material to bond to others. Two of my three Scalpel deaths were bonding failures.

    My biggest concern would be that you'll likely be making the rear 'triangle' weaker while at the same time increasing the stresses on it by installing a larger wheel.

    If you're OK with the risk to your frame, and potentially your body, I think it'll be an interesting experiment. It may reveal some of the reasons C'dale hasn't released a 29er Scalpel yet.

    Good luck!

    -Pete
    I can barely get my mouth around it.

  10. #10
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    Quote Originally Posted by Pedalphile
    I believe bonding will be a challenge, too. AL is not the easiest material to bond to others. Two of my three Scalpel deaths were bonding failures.

    My biggest concern would be that you'll likely be making the rear 'triangle' weaker while at the same time increasing the stresses on it by installing a larger wheel.

    If you're OK with the risk to your frame, and potentially your body, I think it'll be an interesting experiment. It may reveal some of the reasons C'dale hasn't released a 29er Scalpel yet.

    Good luck!

    -Pete
    I agree with this. Why jeopardize the integrity of the frame? The two scalpels I killed were due to those chain stays cracking. While my two frames were the older frames (2004 & 2006) I would imagine that piece was installed to possibly remedy that very issue (pure speculation on my part). But I totally agree with the above statement about making the rear triangle weaker. Why not just run it as a 69er?

    Good luck.

  11. #11
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    Quote Originally Posted by Pedalphile
    I ... It may reveal some of the reasons C'dale hasn't released a 29er Scalpel yet...
    End of 2011 and hence '12 vintage, we will see a 29-er Scalpel, it is an evidence that there are just denying the inevitable.

    Even the denying isn't as strong as last year

  12. #12
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    Asking some informations to friends ...

    A 26 frame with bigger wheels will have a strange behaviour

    Big problem for stability is the high BB shell...

  13. #13
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    eli - have a look at 650b. might be the compromise youre after. better rolling than the 26" but not as drastic as the full 29". heaps of peeps have converted the Rush with good success.

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