drilling on carbon handlebar for Di2 bar-end juction

Discuss light weight issues concerning road bikes & parts.
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apricotwalnut
Posts: 36
Joined: Fri Aug 04, 2017 3:49 pm

by apricotwalnut

hi,
i bought Deda superzero carbon handlebar.
and i'd like to apply bar-end juction on this handlebar.
in the introduction, this handlebar can be applied

internal cable routing; compatible with campagnolo epS / Shimano Di2 cable routing.

but it does not mean barend juction ok.;;;

So, i reviewed some blog how to applied in this case. but all of them are drilled on alloy handlebar.

is it ok for drilling on carbon handle bar??

vinuneuro
Posts: 103
Joined: Mon Mar 06, 2017 10:34 pm
Location: Chicago

by vinuneuro

I wouldn't.
'16 Spec Diverge Expert

by Weenie


audiojan
Posts: 793
Joined: Fri Jan 27, 2006 1:38 pm
Location: New Hampshire

by audiojan

Are you sure you can't fish the cables thorugh the bars? Zipp SL70 Aero technically are blocked, although with a coat hanger and some patience, I managed to push out the plastic "bag" that's in the drop, making space for the Di2 cable.
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin

Butcher
Shop Owner
Posts: 854
Joined: Sun Jan 03, 2010 4:58 am

by Butcher

I have drilled carbon handle bars so I can run wires from the bar to the stem [to hide the EPS interface inside the stem]. I was concerned when I drilled it and 6 months of riding with them. Since then, I have drilled several more [same handle bar and the same space in the handle bar] and after several years of riding, I have not had a problem.

I have not drilled in any other spot in a handle bar.

Tango
Posts: 16
Joined: Mon Feb 27, 2017 9:37 pm

by Tango

I would never drill, especially in case of a lightweight carbon part. The stresses in the bar are likely to increase and you don't know which safety factor was used product design...

If the manual states that it's compatible you might reach out to Deda and ask for more detailed instructions for application.
Maybe you can use a vacuum cleaner to get the cables through the bar.

by Weenie



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