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  1. #1
    good friends dont
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    truvativ tack crank bb bracket taper? Iso or Jis

    I have a truvativ touro track crank and Im gonna replace it. I would like not to have to replace the bottom bracket if I dont have to. It has the square taper bottom bracket but I can not find out if it has a ISO or JIS taper. anyone know? I cant find anything online or when I call truvativ. Thanks

  2. #2
    Senior Member joejack951's Avatar
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    May 2004
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    This is just an educated guess based on information from Sheldon Brown but unless the crank has "NJS" stamped on it somewhere, it's going to be a JIS taper. I'm basing this guess on information from here: http://www.sheldonbrown.com/bbtaper.html

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