I am buying an m760 off a mate and currently have an SLX on my best bike. Which is best (i.e. lightest and stiffest)
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OR
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Not talking about rings and bb just arms/axle
if you're talking about a double SLX then the arms 'should' be stronger as they have steel inserts for the pedals.
but, in the real world i don't think you'll notice the difference.
but, in the real world i don't think you'll notice the difference.
This.^
weight then (btw mine is the triple version of the slx)
No discernable difference. Same sort of stiffness/weight etc... I have the two types on two of my bikes. The best thing about SLX is the steel/composite middle ring (almost no wear on my Trek after a years solid use) but that wasn't the question and you probably know that anyway.
XT looks less [i]special needs[/i] IMHO (I've got SLX 🙁 )