Originally Posted by
Kontact
There's actually 3 cable pulls to worry about: Old road, current road, and MTB.
I would lube the pivot on that pulley with grease. It may not seem like a clever design, but it works just like your derailleur pulleys.
True. I would guess that the force acting on the guide pulley under discussion is considerably higher than that seen by derailleur pulleys, though. Thus, grease instead of a lighter lubricant is a very good suggestion.