Hi ZeePopo , are you after Gen 2 , change over to under slung ? If so 84 mm is the spacing you are after for bracket caliper mount and caliper . Brembo make a cast caliper and also billet calipers in this spacing , P2 Brembo and brackets to suit are available from Webike Japan for Hayabusa , Agras , Active , are some available . Not sure about Gen 1 specs , so cannot recommend anything . The 108mm I am pretty sure is referring to the spacing for the Gen 2 front calipers .
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