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Internal cable routing

Old 06-01-14, 06:55 PM
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moto367
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Internal cable routing

I just picked up my first frame with internal cable routing (Scott road frame). My question is should the housing run all the way through the frame also? I put a cable end on the housing and it wants to push all the way through so I'm assuming the housing should go all the way through. Although, if I position it just so it will dead stop. Thanks for any help.
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Old 06-01-14, 07:26 PM
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My steel frame from the '90s has internal rear brake cable routing the housing runs all the way from the shift lever, through the frame, to the rear brake caliper. No cable stops along the way. I think that is not universal, but is fairly standard.
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Old 06-01-14, 08:12 PM
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The frame itself tells you how it works. (you just have to understand bike)

If it's intended to be an interrupted system (only the inner wire continues) there would have to be a stop the same way as there is for the rear loop on the typical chain stay. Without a stop there's no fixed cable length and the cut housing would be free to move in and out.

OTOH, if there's no stop and you can thread the housing through completely and out the other end, then that's the way it has to be.
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Old 06-01-14, 08:47 PM
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If a housing with an end passes through then it needs continuous housing (which is most common).

The work to add stops and internal guides requires much more work and adds more expense to a finished frame.
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