Originally Posted by
kimconyc
I already linked to that post earlier on in this thread. That's the only thing I've been able to find re KCNC's clamping ability. The OP in that thread admits later on that it was user error, rather than anything caused by the skewer.
Originally Posted by
kimconyc
This is the issue I had with my dropout (this is a common issue with older dropouts; notice the recommendations to fix the problem?):
http://www.bikeforums.net/showthread.php?t=395944
My Old Steel bike has horizontal dropouts:
http://en.wikipedia.org/wiki/Dropout_(bicycle_part)
It's VERY difficult to get the KCNC skewers let alone a regular external cam skewer tight enough for the rear axle not to slip on horizontal dropouts, hence the internal cam skewer. Remember, when these steel bikes were made, everyone used internal cam skewers (you can read about Campagnolo and what his first successful product was if you want).
Again, I own the KCNC skewers, I like them, but it's pretty obvious that their function is predominantly their light weight and not their clamping power.
Ah, ok, I was wondering if you meant horizontal when you said "old-school" earlier. That makes sense, and I think Sheldon Brown also argues that the move to vertical (and safety tabs) made the move to external cams possible. Regardless, that seems to be an argument against all external cam skewers in general and not the KCNC ones in particular.