2

What could I have done wrong to cause the metal strands within my shifter cable housing to protrude out the ends? Did I use the wrong ferrules (I also have black, plastic ones)? Did I get cheap cables? Did I cut the housing too short? I'd ask if I did a poor job cutting the housing, but I used the Park Tool CN-10 cable cutter which I thought did a fairly fine job of cutting these.

enter image description here

  • 2
    Aside - The two nearer cables are also not firmly seated in the frame-stops. This suggests a lack of tension on them (or your brakes happened to be undone in the photo) – Criggie Sep 20 '19 at 11:03
  • @Criggie Those are for the rear brake/front shifter. I've since corrected the shifter, but the brake cable still has a lot of slack when not engaged. Perhaps the brake cable should be fairly taut even when not engaged? – oscilatingcretin Sep 21 '19 at 16:16
  • 1
    @oscillatingcretin The brake cables should be tight enough (at the start/lever full open) that the ferrule sits fully engaged in the frame's stop. In fact, when everything is together and set-up correctly, you shouldn't be able to even pull a ferruled end out of it's stop--if pulled, it may move a few millimeters, but the inner cable's tight enough that the housing/ferrule won't clear the stop's opening to free it. – Jeff Sep 21 '19 at 16:48
7

It looks like you have 4mm housing put into ferrules designed for 5mm housing. The black plastic ones should be the right ones.

| improve this answer | |
  • 1
    Rather use metal ferrules as they are submitted to a rather high pressure from the housing. – Carel Sep 20 '19 at 6:47
  • @Carel: Shimano ships their cable+housing sets with plastic ferrules and I’ve never had any issues with them. – Michael Sep 20 '19 at 6:59
  • I think the ends of the Shimano plastic ferrules have some metal within them. I, too, have never had a problem with these and that they don't need crimping is a plus. – Jeff Sep 20 '19 at 12:30
  • 1
    I can confirm. I once tried to use brake ferrules on shift housings and what is shown in the picture was exactly what happened. – Jahaziel Sep 21 '19 at 2:23
  • I'd say you are correct. I cut new housing lengths where needed and replaced all the metal ferrules with the narrower plastic ones. They fit very nice and snug. – oscilatingcretin Sep 21 '19 at 15:59

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.