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Yep. All 50/34. Like I said, it makes no sense at all. Could be just one of those things, but it happened repeatedly despite me checking a re-checking the FD setups.
Brommers-
Happened multiple times and you checked FD setup in between, all I can think of is an issue with the BB (but you didn't swap that?) or the rings themselves - is it possible to install them backwards or something? I can't remember. I think there's plenty of writing on them telling you which way to install them so unless you were drunk every time you checked? :)
Anyway, I've run Praxis rings or at least one Praxis ring for most of my TCRs and stuff and I only remember the one weird thing in the US and that wasn't an under/overshifting thing it was probably gunk on the ring or a hard bump at the same time as a shift that I didn't hear to 'catch' while pedaling.
Maybe you got unlucky? I'll take them off you. :)
I had a carbon ring on the TT bike that never worked properly and totally failed during the Nat 24. They replaced it but we never did get to the bottom of the problem. Other carbon rings from the same guys worked just fine. I still have the BNIB replacement. Think it's a 51T.
hippy
Were the Rotor rings the same size?