I recall needing to tighten the levers much much more than I was comfortable with. My first nice bike with SR was slipping and Bill Ron said I needed to tighten the levers. I did and they still slipped. Bill really really tightened them. Nowadays, when I get em just right, it feels like the D-ring should break off at that just right point.
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I don't do: disks, tubeless, e-shifting, or bead head nymphs. But I do hate all e-bikes.