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  1. Dimensions for brake bells/hats

    Alfa 159, Brera & 946 Spider
    Hi everyone , looking to upgrade the calipers on my 159 2.2 2005 to the calipers from a 166 v6 but I'm trying to get round fact that disc size are slightly different . My solution is to have 2 piece brake disc so I would go 305mm to 310mm but I need bells , so does anyone know the dimensions I...
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