D
Doug
Guest
I'm building up a roadie on a monocoque carbon frame that has internal
shift cable routing. At the points where the cables enter the frame
near the cable stops, and at the point where the cable leaves the
frame near the front der, the cable does not enter/exit perfectly
centered in the hole. It rubs on the frame, due to the entry/exit
angle.
Long term, do I have to worry about wearing a groove in the entry/exit
holes? What can be done if so? I presume the rubbing of the cable
along the entire length on the internal tunnel is not a problem since
that bearing surface is so large. But right at the entry/exit holes,
the rub point is concentrated.
The rear der exit hole is OK. There is a little aluminum cable end
piece that comes with Ultegra brifters that fits perfectly in the hole
and prevents the exit hole rub point. That hole also has a molded cup
in the frame to accept such a cable end piece. The other holes don't.
Doug
shift cable routing. At the points where the cables enter the frame
near the cable stops, and at the point where the cable leaves the
frame near the front der, the cable does not enter/exit perfectly
centered in the hole. It rubs on the frame, due to the entry/exit
angle.
Long term, do I have to worry about wearing a groove in the entry/exit
holes? What can be done if so? I presume the rubbing of the cable
along the entire length on the internal tunnel is not a problem since
that bearing surface is so large. But right at the entry/exit holes,
the rub point is concentrated.
The rear der exit hole is OK. There is a little aluminum cable end
piece that comes with Ultegra brifters that fits perfectly in the hole
and prevents the exit hole rub point. That hole also has a molded cup
in the frame to accept such a cable end piece. The other holes don't.
Doug