There's a cable adapter but it's only for use with 11 speed TT shifters as far as I'm aware. No other 11 and 12 cross compatibility.
Thanks. Just thinking if I buy a new battery, I'd want the newer ones not the older ones and would that work, but I guess they're forcing a full upgrade.
@hippy started
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There's a cable adapter but it's only for use with 11 speed TT shifters as far as I'm aware. No other 11 and 12 cross compatibility.