Has anyone tried the new Miche quick-change cog? The interface looks a little weak to me, but that doesn't mean it's bad.

The notches are big enuf to hold the cog perfectly.

Do tighten down your lockring to feel secure though, as it does look a little scary, at first.

I found w/a Phil lockring, I had to reverse it because the shoulder hit just below the notches. Not a problem, but it means that the lockring notches are then flush to the cog, which, in turn means, that you'll not be able to use a Var plier type tool to remove the lockring. Old Park SPA-3 works fine...

Also, after each of the first couple of rides, tighten down the lockring, again, as the cog and carrier have tightened themselves down on the hub.

PH