>>1979919you don't need to add grease and you're absolutely right that doing so would soon create gunk.
that advice probably harks back to metal cable guides.
almost all bikes have plastic ones
just cleaning it is enough.
The clutch thing is true though. This can be a problem area, it is simply a matter of cleaning it though, there's no need to devise anything else.
>How is the pully install supposed to work?i guess similiar to the cable guides that are on top of the bottom bracket shell, but, a pulley, that's on the bottom of the seat tube. That's a sound idea. I've routed different cables with those clamp on pulleys a few times for various reasons. Seat tube pulleys also commonly existed to convert top to bottom or bottom to top pull front derailers on early mtbs, often brazed on.
I don't see why it would be necessary though for any normal case.
