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so I guess this means I need new cables, eh?(5 posts)

so I guess this means I need new cables, eh?tarwheel
May 17, 2002 3:49 AM
I'm riding along yesterday afternoon and felt a sharp prick in one of my fingers on my right hand. I look to see what's going on, and there are two cable ends poking through the rubber housings on my Chorus shifters. It still shifted fine and I got home OK, but I guess some of the cables must have broken and then poked through the housing. Time for new cables?

My bike and Chorus group has about 5,250 miles on it. The funny thing is that several items have worn out just within the past couple weeks. The C-10 chain snapped at the 5,100 mark. And my headset started sticking, or centering, a few days later. (My bike shop said the stem cap was too tight, and now it's working fine, although I suspect that the races are brinelled.) In the future, I guess I'll consider the 5,000 mile point a good time to replace these sorts of parts. Anything else I should be looking at, maintenance wise?
Why not do the whole job at once?cory
May 17, 2002 8:06 AM
5,000 is a lot of miles. If you have to do the cables and headset, might as well do the brake pads and replace the wheel and BB bearings etc., too. It's cheap and not that much work.
That's not what I'D probably do, because I hate working on bikes and ride them until they won't go. But it's what I wish somebody else would do to mine.
re: so I guess this means I need new cables, eh?Guru_at_AmClassic
May 18, 2002 4:22 AM
Usually the 3000 to 3500 mile point you should replace your chain and cassette, ESPECIALLY on the 10spd stuff. The chain and cassette wear down very quickly! As for the headset, it is most likely pitted. I would replace it. Just check it by using a brite flashlight and clean it well and you should be able to see the wear or pitting if there is any. The Campy cables are prone to coming apart like that because they are bent badly in an area where they are stiff. So, they break right at the shifter. It is common. Just check them every couple months and you will be good.
Check to make sure the drivetrain is clean and well lubed, check to see if your seatpost needs grease so it doesn't seize up and make sure your cable are clean in the housing, if not, use some Tri-Flow and lube them. If you using a very very lightweight bar and stem, check to make sure they are tight and there are no cracks are marks on them.

Guru
American Classic Design
When to replace whatKerry
May 18, 2002 5:08 AM
5000 miles is not much for anything on a bike except chain/cogs. The fact that your chain actually broke is more a problem with the now-defunct permalink than with chains in general. On my last Campy Record C-9 chain and steel cassette, I got about 12K miles before the chain reached the 0.5% elongation point. I've never had a chain actually break. Cables life will obviously depend on how much you shift (as well as installation job and lubing) but I routinely get 25-30K miles out of cables - it's fairly flat around here so I'm not shifting all the time. A Campy BB should last many 10K miles (my current Record unit has over 40K miles on it with no roughness at all) unless you constantly ride in the rain. Your HS problem was probably an adjustment problem, though you may have fretted the bearings if things were too tight. If the indexing is gone, then you should be good to go.

The point on maintenance is to monitor things, and keep them clean and lubed. There's really no predictable replacement point because riding conditions vary so much. As I said before, 5K miles is pretty soon for anything but a chain/cassette.
shiftingbianchi boy
May 18, 2002 5:41 PM
Actually, I do a lot of shifting. It's pretty hilly where I live and I'm a spinner, so I shift a lot to keep my cadence up. I just put a Wipperman chain on the bike and will see how that holds up. If I can get at least 3,000 miles out of it, I probably won't be buying any more C-10 chains. No $60 chain tools for me. The headset seems to be working fine since I had the tension adjusted. My bikeshop wants $130 for a Chris King headset, plus $30 labor to install it, so I'm in no hurry to replace it just yet.