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Internal Cable Routing: Styles, Pros & Cons...
I've searched around and found nothing comprehensive on the subject...
What are your thoughts on internal cable routing, and how should it be done?
Full housing in a copper tube?
Stops into the frame with bare cable inside, or cable ran through copper tube?
Discourage at all costs?
Should it be limited to brakes and not used for derailleurs?
Not too late to quit while im ahead, seems like a few of you are bummed on it...
Thank you for letting me glean some knowledge!
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Re: Internal Cable Routing: Styles, Pros & Cons...
Taylor,
I'm by no means an expert but heres what I know. The outcome is usually stunningly clean no matter which method you use. It's a high angle addition to any frame in my opinion, meaning that you get 100% effect for 125% effort. Having done two frames with the full housing thru brass tubes for the rear brake(disc) only, one just the top tube and the other the top tube and seat stay I can honestly say that I got it out of my system. I'm glad I did it for the knowledge but it doesn't just add a few steps to the building of the frame it also adds to the building up of the bike and more importantly it adds steps to the maintenence of the bike as well, which to me isn't always welcome YMMV of course. You should do it so you know how tetchy it can be and then just file it away in the 'can do' pile.
good luck,
Jake
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Re: Internal Cable Routing: Styles, Pros & Cons...
I've done this exactly once, so take this with a grain. I used an annealed stainless line which allowed a continuous piece of 5mm housing, perfect slip fit. The annealed state lets the line be bent easily by hand, no tools. I put a piece of housing in the stainless line prior to bending it.
There's a McMaster-Carr part # for the stainless tube I used. I'd do some things a little different next time, mainly not filing the brake line flush with the top tube. I installed the line prior to building the front end, which lets me make sure the internal line isn't touching the main tube and that I got good brazing penetration (i.e. internal).
As for whether this sort of thing is worth it... personally, no. It's a lot more labor for I think no real functional gain, but it looks cool. I'd do it again. I was worried about a mushy feel at the lever with the full length housing, which I've experienced on another bike that used top tube loop guides. I didn't notice that here. I think it's because the housing is entirely encapsulated by the stainless line so the housing can't squirm around. That's just a hunch though.
Here's a few pics starting here: http://www.flickr.com/photos/palermo...7613460296173/
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Re: Internal Cable Routing: Styles, Pros & Cons...
I only do rear brake top tube jet venting. I do them quite often. It adds 20-30 minutes total to the build. Many of my customers like the look of it and so do I. Worth it? Sure if you're charging for it.
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Re: Internal Cable Routing: Styles, Pros & Cons...
tim (shamrock cycles/hmba trail) does a lot of it. it's one of the few framebuilding things we got to talk about at the big show. and he doesn't limit it to top tubes.
couldn't quickly find the photos i wanted (the fork tim, the fork)--so this will suffice:
zanc and i discussed it too as he had that wonderful cut-away frame, and the only internal tt bike i've had--had a rattle. we discussed the causes/solutions to the rattle.
never send one out that rattles. and i'm for the full-housing route as tom mentions above. and he nailed that one--no squirming, thus no mushiness therefrom.
>note< i have no installation experience and am mostly all mouth.
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Re: Internal Cable Routing: Styles, Pros & Cons...
Here is my process. I did this one today. I was going to save it for FNL, but it's better served here I think. I use 9/32 x 0.014" wall brass tubing that I get from McMaster Carr that's made in the US by K S Engineering in Chicago.
First I mark the points of entry on the tube.
Then I mill the slots. I use a 5/16" endmill and make a 1.5 cm long slot. Then I use a 1/4" endmill and extend the slot 0.5 cm in each direction. I'm left with 2.5 cm long slot.
I pre-bend the tube. When I'm lucky, it actually pops out the hole at the other end without much messing about.
to be continued...
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Re: Internal Cable Routing: Styles, Pros & Cons...
I like to use the braze-ons because I like the look. Flux it up, light the torch and have at it with some 56 silver.
Rinse it off in hot water...
Finish it off...
And you're good to go.
Hope that helps! I really like doing these. It's a mix with my customers. Some dig it and some don't.
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Re: Internal Cable Routing: Styles, Pros & Cons...
I mostly like internal hose guides because they are silent compared to anything else. I haven't done any for cables yet, but the next bike will have at least an internal cable, maybe two or three. Of course, they look sexy too but the main reason I like it is that it is silent on the trail:
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Re: Internal Cable Routing: Styles, Pros & Cons...
Dazza, won't the cable gradually saw away at that bends you have in the brass tube?
FRAMEBUILDING PARTS FOR
SALE!
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Re: Internal Cable Routing: Styles, Pros & Cons...
Originally Posted by
Thylacine Cycles
Dazza, won't the cable gradually saw away at that bends you have in the brass tube?
Yes of course
after about 127 years
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Re: Internal Cable Routing: Styles, Pros & Cons...
Sorry to bump an older thread, but I'm wondering if there's a source for cable stop/ferrules similar to the kind that Nova sells w/ their internal routing kit:
NOV_150_IRGD_SET_NEW-06.jpg
Nova only offers the cable stops as part of the housing kit, and I don't really need the tubing.
Thanks
Michael
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Re: Internal Cable Routing: Styles, Pros & Cons...
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Re: Internal Cable Routing: Styles, Pros & Cons...
isn't that just tubing with an ID of 5.5mm?
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