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Discussion Starter · #1 ·
Hi,

I'm considering either the M580 LX shifters, or the M770 XT shifters.

From what I can tell, here are the differences:

XT is a wee bit lighter, has instant release and position adjust

Is that all? They both have dual release as far as I can tell, and both have removable gear indicators.

Opinions?

Thanks!
Sam
 

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They use different shift mechanisms. The XT's mechanism is also supported by ball-bearings (rather than the LX's bushings) and will have a lighter and smoother action. Although the differences may not be vast when the units are new, the XT will retain the tightness and precision of a new component for longer than the LX, where the bushings will gradually deform over time.
 
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