TT gear shifter expander plugs in carbon TT bars?

Discuss light weight issues concerning road bikes & parts.
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alanmclean
Posts: 277
Joined: Fri Dec 23, 2005 5:10 pm
Location: Inverclyde, Scotland

by alanmclean

Hi

I would like a lighter carbon aerobar setup for my TT bike. I am currently using DA TT shifters in alloy extensions.

The shifters have an expander plug which wedges in the end of the bars.

Are these plugs safe for carbon extensions? Are the extensions usually engineered to take the forces?

Grateful for advice.

Thank you.

Alan

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Juanmoretime
Administrator
Posts: 7063
Joined: Sat Jun 19, 2004 11:08 am
Location: Urbana, Illinois

by Juanmoretime

I use Campy in carbon extensions. You just expand them enough so the are secure and don't rotate and absolutely no more.
RESIDENT GRUMPY OLD MAN.

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Szczuldo
Posts: 571
Joined: Tue Aug 12, 2008 2:22 pm
Location: Salt Lake City, UT

by Szczuldo

I wouldn't worry about it, a cylinder is a strong shape, the more pressing concern is how much weight you are saving!
My Lynskey R420 with Chorus 11

If you are interested in a Weight Weenies kit I no longer know what you should do.

thisisatest
Shop Owner
Posts: 1980
Joined: Sat Jun 13, 2009 4:02 am
Location: NoVA/DC

by thisisatest

if you have bs78 tt shifters, get some bs79. they are a lot lighter, due to the aluminum t-nut, expander bolt, and wedges.

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