Bicycle Mechanics - Cable route
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03-29-08, 10:59 AM
I picked up a used Pinarello 1998 steel cyclocross frame. So far its coming together pretty good using new parts. I'm curious about one thing tho. There is only one braze-on on the downtube and its on the left side. I dont see any way to run the cable down the right side of the downtube. Any ideas/suggestions? This is my 1st build and I'm nowhere near an expert so speak slowly and use little words please :D
03-29-08, 11:22 AM
Perhaps the other cable (rear derailleur cable) is routed over the top tube along with the rear brake cable...
03-29-08, 11:40 AM
Cycloscross frames often ran the rd cable over the top tube and down the seatstay
to protect it from snagging and were expected to use bar-end shifters, not downtube shifters.
There are clamp-on cable stops that fit "standard diameter" (1-1/8") downtubes if you want to use STI/Ergo or bar-end shifters. There are also clamp-on downtube shifters (all friction AFAIK).
03-29-08, 01:09 PM
Nice frame. From the photo it looks like there are bosses for two cables on the top tube and one on the downtube. Like the others have stated, the cable for the RD and rear brake will route along the top. There is no problem using brifters with this setup as is, though you can add an inline adjuster to the RD if you want to fine tune the rd while riding. It's really not needed though with the normal adjuster at the rd.
03-30-08, 12:51 PM
I don't know if I understand, but here's 2 cents worth. It doesn't seem to matter which side of the downtube you run your cables on. I bought a used frame and discovered that the cables crossed under the downtube between the top cable stops and the thingies under the bottom bracket that route them to the derailleurs. I wondered if I should fix this "mistake" and did some asking. I found out it doesn't really matter. I recall discovering that Sheldon (RIP) actually preferred routing his cables that way. I built another bike from a frame this fall and crossed the cables from the getgo.
So, I'm not sure I understand the problem you described, but if it helps to know that the side of the downtube you run cables doesn't matter, well there you go.
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