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Thread: bottom bracket

  1. #1
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    bottom bracket

    I ride a GT GTR series 4 with a square taper bottom bracket. I'm looking to upgrade to a external BB. I've called GT and they are saying my BB shell is a BB86, but everything I see about BB86 show press fit, and when I look closely at my BB I can see threads. I'm just looking for some advise on making this conversion somi don't waste time and money ordering incorrect parts.

  2. #2
    coprolite fietsbob's Avatar
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    and have you spoken to the local bike shop? bringin your bike. they can see stuff,

    .. since you have not offered pictures.

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