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  1. #1
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    Hussefelt / ISIS BB interface problem

    Hey - I'm building a bike, and I've just put a Hussefelt crank on a Gigapipe Team BB (not external bearings). The crankarms will not solidly attach, there is lots of play on each arm. I can't tell if the bolts are bottoming out, or if there is some problem with the spline interface.

    Any ideas?

    Thanks in advance,

    T

  2. #2
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    You are absolutly shure that the Cranks are a "older" Husselfeld ISIS is? And not the newer
    Husselfelt Howitzer.
    Both are not compatible.

  3. #3
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    Quote Originally Posted by velopax
    You are absolutly shure that the Cranks are a "older" Husselfeld ISIS is? And not the newer
    Husselfelt Howitzer.
    Both are not compatible.

    Nope, not sure at all. Didn't know there was a difference! How would I tell them apart?

  4. #4
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    Caution;  Merge;  Workers Ahead!

    If you have these Cranks


    You need one of these BBs


    It's labeled on the Cranks as well

  5. #5
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    Aha!

    Well when you put it that way... Mine are actually the 1.1 RG, but they are labelled the same as the photo you provided...

    Guess I shoulda done more research - the online shop I bought from makes it sound like the Howitzer is merely recommended, I had no idea that Truvative makes anything other than ISIS cranks.

    What to do... I'm looking for a BB with 68mm shell / 113mm spindle for this application - Is the "51mm chainline" Howitzer going to be close?

  6. #6
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    Caution;  Merge;  Workers Ahead!

    Forget measurement of conventionel BBs, Howitzer is a little bit different
    The Howitzer you need for 51mm chainline has 136mm spindellengh and fits in a 68 and 73mm shell.
    It's the same chainline you have on a 68/113 setup.
    With a Howitzer BB comes 3 spacer, put 2 on the driveside and 1 on the other for 68mm, and tighten the cups with 40Nm.
    As you requested also with one ring, but it does'nt matter the chainline is important.



    ISIS is on most Truvativ cranks history
    Last edited by velopax; 10-23-2007 at 09:53 PM.

  7. #7
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    Guess I'll just have to try it and see

    Thanks a bunch, velopax, why couldn't my LBS give me that info!?!

    We'll see how it goes...

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