Originally Posted by
SurferRosa
Alas, modernity runs further and further away from this concept.
And towards better and better connections. Threadless headset solved a very big problem in terms of headsets…that of loosening headsets, particularly in mountain bikes. The jam nut concept works but not in situations where there is a lot of vibration. Loosening headsets was such a problem in the early 90s that there was a very large cottage industry making locking mechanisms to replace the top nut on threaded headsets. There were dozens of different approaches.
Threadless solved that issue with a better simple machine.