Internal cable routing.

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jpb

Active Member
Location
Plymouth
i have been upgrading my bike and just purchase the ultegra 6700 groupset which has internal cabling. i've also just purchased the wcs richie carbon bars that dont have holes for the cables. silly question but because the bars dont have the holes for the cables and i'm about to just tape them underneath the bar tape... will this be a bad thing or is it fine to do this and you don't necessarally need bars which the cables can be routed through??????????????
 
You route under the bar tape. That is what is meant by the term internal (or more accurately concealed) cabling.

Bars do not come with holes to route the cable through them.
 
OP
OP
J

jpb

Active Member
Location
Plymouth
here is a picture to show them. i think having it like this just gives less compression on the gear wire.

astana_vino_sl3_computer_mount_600.jpg
 

Angelfishsolo

A Velocipedian
:rofl:


I suspect SJ's theory that such bars don't exist was based on the fact that most mere mortals could not contemplate spending that sort of money on a pair of bars. You will not compromise cable performance by taping them under the bars.

I am just wondering how much pressure you would need to exert on the cable outer to compress it?
 
:rofl:


I suspect SJ's theory that such bars don't exist was based on the fact that most mere mortals could not contemplate spending that sort of money on a pair of bars. You will not compromise cable performance by taping them under the bars.
£416 quid (with the discount)
ohmy.gif


My best frame didn't cost that much, and it's a good frame.
 
OP
OP
J

jpb

Active Member
Location
Plymouth
i think that way overpriced for handlebars unless your doing it for a living. i managed to get my richie wcs bars for 50 quid and i dont think theres any need to spend over £100. They do look good but wayyyyyyyyyy overpriced. probably cost an eigth of that to make!
 
I am just wondering how much pressure you would need to exert on the cable outer to compress it?
I don't honestly know, but I can't imagine it being possible to compress it via a wrap of bar tape.


Insane. I can see no benefit other than snob value!
+1 I will admit to being partial to a bit of bling, but these are as you say, 'insane' :wacko:

They do look good.
I beg to differ. The design looks good, but in white it just shouts chav IMHO xx(
 
OP
OP
J

jpb

Active Member
Location
Plymouth
I beg to differ. The design looks good, but in white it just shouts chav IMHO xx(
[/quote]

it depend on what bike. my bike is all blue and white so i think the white would look better. you can get them in black too and i think contador had them on his old wilier bike.
 

GrasB

Veteran
Location
Nr Cambridge
£416 quid (with the discount)
ohmy.gif


My best frame didn't cost that much, and it's a good frame.
My integrated bars were half that & have fully internal routing (the cables exit under stem near the headset clamp).

Insane. I can see no benefit other than snob value!
Less cable clutter, easier to route cables into internally routed frames cleanly, a bit more aero & one less interface which may be subject to fatigue induced failure. In aero terms you approximately half the drag caused by the rear brake cable, at 25mph that's something like 2w of power, across 4 cables that's around +0.15-0.2mph. So in the realms of the last 0.5% of gains that gets you that extra wheel length in the final sprint, for mere mortals not something that's too important, but not quite in the realms of hand picked bearings to gain 0.5w at 30mph.
 
[quote name='GrasB' timestamp='1313258323' post='1796834'

In aero terms you approximately half the drag caused by the rear brake cable, at 25mph that's something like 2w of power, across 4 cables that's around +0.15-0.2mph. So in the realms of the last 0.5% of gains that gets you that extra wheel length in the final sprint, for mere mortals not something that's too important, but not quite in the realms of hand picked bearings to gain 0.5w at 30mph.
[/quote]


Apart from the fact that cables routed under the tape are no more exposed to the air than those that go inside the bars there is no drag from brake or gear cables anyway. The air that doesn't hit an exposed cable will get you full in the chest a couple of inches further back.
 
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