Originally Posted by
HillRider
I've never seen a locknut that positively stops at the steerer top but I've seen several with a plastic O-ring that makes them a tight fit on the steerer if you try to thread them down too far as does act as a sort of depth stop.
Originally Posted by
JohnDThompson
All threaded headsets I've seen have a lip on the top locknut that prevents it from threading beyond the top of the steer tube.
Originally Posted by
HillRider
Yes but the "lip" on the ones I have is a plastic ring that does act as a stop but could be pushed out if you keep tightening beyond the end of the steerer.
Ahhh, we just have to take a trip down memory lane... Cheapo headset had plastic or rubber top, nicer ones had one-piece locknuts that cover the unsightly rusty end of cut steerer tube. Campy for example, never ever made a locknut that allowed the steerer to peek through. He considered that unprofessional, what kind of mechanic doesn't know how to measure and properly cut a steerer tube.
Tange too has solid top. Their BMX headsets even have a screw that you can tighten down onto the adjustable-cup for really tight locking.
