Join Date: Apr 2009
Location: 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
Mentioned: 28 Post(s)
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Unless made with a ballistic outer cover, usually kevlar, high helix index housing is not suited for brake applications because under high compression the strands can and will buckle causing total loss of brakes.
Index (high helix) housing is for derailleurs and designed for precise transmission of position at low loads
Brake (low helix) housing is for brakes and designed for reliable transmission of force at all loads.
If you haven't kinked the housing separating a coil, than any slop you might have might be from poor cuts or incorrect ferrules. One indicator is if the housing deflects sideways at the fittings when you apply the brake. If so, pull it apart and square off the ends with a grinder (work fast and quench often so you don't melt the plastic cover or liner).
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