Tech Cable guide on steel frame

Sibreen

Maximum Pace
Jul 23, 2010
564
242
63
Hanno, Saitama
#1
I have an old steel frame and it has started to rust where the derailleur wires run through be underside of the frame. I think this rust is creating friction and making it difficult to shift up with the front derailleur.

At the moment the cables are running 'naked' through the cable guide, but I remember reading somewhere that I should have a length of cable housing here to prevent friction.
Is this correct, and will this likely fix the shifting problem?
 

FarEast

Maximum Pace
May 25, 2009
5,528
538
193
Yokohama
#2
Never heard of that before - what they might be talking about is a Teflon sleeve that you fit over the entire length of the cable from the shifter to the rear derailleur.

But really you should be looking to treat the rust rather than find a work around.
 
Likes: kiwisimon

FarEast

Maximum Pace
May 25, 2009
5,528
538
193
Yokohama
#4
I would first off go at the area with rust treatment and a coarse brush - remember rust is eating your frame. Once you've cleared it all off then get a laqeur to waterproof and protect it from the elements - then lube the area.