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  1. #1
    mtbr member
    Join Date
    Oct 2008

    5.5 EVP and Gamut P20 Install Help

    I am (attempting) to install a Gamut P20 on my 5.5 and don't know whether to remove the 2.5mm bottom bracket spacer (shimano XT Cranks). The Gamut boomerang is inset where the bb cup fits in it and it seems like the spacer fits in the inset. But I don't know if that leaves enough threads to grip into the frame. The bb shell is 73mm.

    What's the deal? Spacer or no spacer?


  2. #2
    LCJ is offline
    mtbr member
    Join Date
    Jul 2006
    If the spacer is the same thickness as the guide plate then discard the spacer. If the guide plate is thinner than the spacer then you need to add another spacer between the plate and the BB cup to maintain the chain line. If the plate is thicker than the spacer you probably need to buy a Tracer :-)

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