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Presumably that DA 10sp bar end shifter has a 1.7 pull ratio, in which case the 9-sp rear mechs will work (e.g. M772), but don't buy shadow plus mech which is the clutch version and incompatible.
How old are the bar ends?Also apologies for basically hijacking the wanted ad, i'm afraid i don't have a mech for you!
lf
Ah, that’s really helpful - thanks. I’d clean forgotten how the pull is an issue.
The 1x7 is using a DA7700 bar-end/thumbie in friction shifter mode with a M780 rear. For the 1x10, I’ve got a DA 10-speed bar-end that I don’t think has a friction option - so it will need a compatible rear. Ugh.
Okay. More reading needed!