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Brake cabling housing, lever not pulling back

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Brake cabling housing, lever not pulling back

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Old 08-31-15 | 08:36 PM
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Brake cabling housing, lever not pulling back

Hey eveyone,

I installed some compression less housing on my disc brakes and I noticed on the front brake when I pull it, there is no load on the pull and the cable housing does not move when I press the lever as well. How can I solve this and what happened?

I'm a noob so not sure what I'm doing wrong.

Thanks in advance for the help!
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Old 08-31-15 | 08:57 PM
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From: New Rochelle, NY

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

I'm not sure of your question, so I'll just describe how it's supposed to be and you can see where it isn't.

The housing should form a continuous flexible tube connecting the body of the lever to the fitting on the brake. That establishes the "compressionless" length that the inner wire runs through. If all is right the housing would never move, and the lever would pull the inner wire back and forth within it's length.

Note that it's important that the housing is a free unrestrained run (you can tie it down, but not tension it) so it's length is fixed only by the ends. otherwise the system can't work.

If the wire is binding within the housing the common cause is an end being pinched closed when you cut it. Another issue is the choice of ferrule. Normal "brake" ferrules are made for the spring coil type of housing and have a conical bottom (inside). Compressionless housing requires special ferrules with flat bottoms, so the wire ends don't work their down and get pinched together by the conical bottom. That's another common cause of the wire binding, though usually not immediately when installed.

I hope this helped, but if it doesn't repost your question , trying to be as specific as possible when describing the issue.
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