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  • Has anyone here modified a Supersix (mine is 2011 model) to use the 46/30T Spiderring? The bracket for the front mech is located for a 50T min big ring, so way I see it is either the bracket must be replaced with one that has a deeper slot, or removed to permit the use of a band-on.

  • fucking hell, just bought an FSA supercompact adapter yesterday for a LOT more than that. Couldn't believe how much they cost, still can't

  • I struggle to see quite how that works — does it bolt to the inside or outside of the bracket?

    Shimano explicitly requires the outer cage plate to clear the big ring by <1 mm. The optimum way would be to remove the existing bracket and replace it with a new deeper bracket, riveted in to the existing rivet holes. But executing that mod is perilous and likely not a DIY job.

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