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Road bars with internal routing

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Road bars with internal routing

Old 07-13-14, 07:57 AM
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LastKraftWagen
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Road bars with internal routing

Not tandem specific, but I'm looking for suggestions for road bars with internal cable/DI2 wiring ports. Blind means I can't see these features in advertisements, and too often the descriptions don't specify (the ones I can find).

Thanks,
LKW
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Old 07-13-14, 07:50 PM
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zonatandem
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Decades ago we ran barcon shifters on one of our custom tandems.
Drilled hole about about 2 inches from center of stem on each side of stem on aluminum bar.
We cut a notch at very end of the drops so cable would exit and attach to barcon.
Were told we were courting trouble and that bar could break.
Ran it successfully for 56,000 miles that way without any issues.
Drilling for Di2 cables would be a smaller hole than for cablehousing we used.
And yes c/f can be drilled; have drilling on our custom c/f tandem on lateral tube near headtube for cable adjusters and also on fillet by stoker seattube near her bottom bracket for a front derailleur routing gizmo (photo of allen bolt). Drilling was done by the builder.
After 40,000+ miles on that tandem we have had no adverse effects.
That is our experience; your experience/results could/may be different.
Pedal on TWOgether!
Rudy and Kay/zonatandem
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Old 07-13-14, 09:44 PM
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LastKraftWagen
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Originally Posted by zonatandem View Post
Decades ago we ran barcon shifters on one of our custom tandems.
Drilled hole about about 2 inches from center of stem on each side of stem on aluminum bar.
We cut a notch at very end of the drops so cable would exit and attach to barcon.
Were told we were courting trouble and that bar could break.
Ran it successfully for 56,000 miles that way without any issues.
Drilling for Di2 cables would be a smaller hole than for cablehousing we used.
And yes c/f can be drilled; have drilling on our custom c/f tandem on lateral tube near headtube for cable adjusters and also on fillet by stoker seattube near her bottom bracket for a front derailleur routing gizmo (photo of allen bolt). Drilling was done by the builder.
After 40,000+ miles on that tandem we have had no adverse effects.
That is our experience; your experience/results could/may be different.
Pedal on TWOgether!
Rudy and Kay/zonatandem

Considered this option, but not a mod I would want to get wrong...Some of my pilots are 230+ pound gorillas. They say be nice to the stoker, but if you kill a pilot you may as well find another sport.
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Old 07-14-14, 07:49 PM
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FSA makes the K-Wing bars that are internally routed.
K-WING COMPACT WHITE HANDLEBAR
The cables still cross in front of your head tube. FWIW, I tried them for a couple of weeks, but returned them for a more traditional bar (Zip). As I recall, there are five bends in the cabling routing from the levers to the cable stops on the down and top tubes. Bends = lots of friction. The shifting was not very accurate, even using Jagwire Teflon cables. Don't know about D12 wiring. Probably give FSA tech support a ring
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