Cable housing under bottom bracket of Cervelo P2SL
03-19-16, 06:00 PM
#1
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Cable housing under bottom bracket of Cervelo P2SL
the cable housing under the bottom bracket - just noticed that the small piece of housing that routes the cable up to the front derailleur is actually a piece of brake cable housing. This was the last piece of housing I needed to replace. Any reason someone would have used a brake cable housing there instead of shifter housing?
03-19-16, 06:26 PM
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Perhaps because this loop of casing only redirected the cable path and didn't fit between any stops. So no compressing forces at play. Andy.
03-19-16, 06:29 PM
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Not sure. There are two, what I would probably call stops, mounted there. One under the bottom bracket, one closer to where the cable attaches to the front derailleur. Both are welded to the frame. The diameter of these stops is large though. The brake cable with a ferrule on it easily fits there. I guess I can just try it with shifter housing. Since the cable will already be routed through the frame, if it has issues I could just always replace it with brake housing again later?
03-19-16, 06:42 PM
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Sure, try it and see. Andy.
03-19-16, 07:50 PM
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They probably used brake housing since it was on hand and the application is not critical. Probably plain teflon "spaghetti" tubing would have worked as well.
03-20-16, 05:32 AM
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If it's a short length and tight bend, spiral brake cable housing might be the best solution. I say spiral because there are parallel wire brake housings which would be more difficult to use than 4mm shifter housing.
03-20-16, 02:13 PM
#7
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Thanks everyone. Now that I have the housing installed (which was no small feat), I can't seem to find a clear path from the top cable stop to the cable fixing bolt on the front derailleur. No matter how I seem to route it, it wraps over a piece of the derailleur body. That can't be right, what might I be missing?
03-20-16, 06:11 PM
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It's a fixed path so it doesn't need indexed housing.
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