Originally Posted by
Bandera
Is a modern mechanical bicycle shifting system vs. a modern E-shift system more or less reliable?
It's a non-issue for either system as the reliability is very high. Maybe your electronic system fails once every few years or your brake a cable once in a while. It's not the end of the world in either case.
The same logic applies to 10 and 11 speed systems. They're not as strong or durable as 6 and 7 speed but the benefits outweigh the modest penalty in durability for most people.