Originally Posted by
papaki72
......Well said (you see how far my knowledge on this goes...). They are cartridge bearings on Axis wheels of a Specialized Alez Sport 2021 bike.
When do they "tell you" they 're bad? So far I feel something like a murmuring/vibration on the bars while holding the front wheel up and spinning it, but it runs smooth.
The point I was making is that you aren't going to damage anything "worse", unlike ignoring a cup & cone type where ignoring those can result in destruction of the bearing parts that may be difficult to source & replace.
When the cartridge bearing gets rough enough that it's noticeable when riding, then replace. Unless you're going on an extended tour etc.