Im trying to fix up an old MTB (1993 KHS Montana Comp) it has old shimano canti brakes (deore lx) I think.. and on them is a sort of grey tube like the one in this picture. (this isn't my bike though)
The one on my back brake is all worn down at the top so it's shorter than it should be and I think it's affecting the way my back brake works
I don't know what that grey tube is called so I can't search google for a new one... does anyone know?
Would it be ok to just cut a piece of black shimano break/gear cable outer casing to the right length and use that?