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  • Thanks.

    She tried my GRX and Ultregra and prefers the smoother Ultegra hoods. Are there smoother aftermarket hoods for GRX, I wonder?

    If I've already got older series 11s Di2 RD and FD lying around, presumably I could get battery, cables, Junc A and B and then use 105 Di2 shifters? Are they backward compat or will I have to find older shifters?

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