Tuned Dura-ace 7900 group.

Discuss light weight issues concerning road bikes & parts.
kevosinn
in the industry
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Joined: Mon Mar 05, 2012 7:28 am
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by kevosinn

The cut off bolts worked perfect! Probably didn't save much weight but it looks cleaner.
Www.crypticcycles.com Custom carbon frames, bar/stem combos, repair and component tuning.

Snicks
Posts: 57
Joined: Sat Nov 12, 2011 8:33 am

by Snicks

Brakes next or is that TOO weenie...
(I kid myself, nothing is too weenie right?)

No but seriously, I know the DA brakes will always be chubby chubby but imagine dropping some weight off those and still keeping the braking performance...

kevosinn
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by kevosinn

Nothing is to weenie haha but I know someone that machined out some DA brakes and they did get pretty flexy. Im running the AX lightness calipers right now at 107 grams so im ok there! :)
Www.crypticcycles.com Custom carbon frames, bar/stem combos, repair and component tuning.

lechat
Posts: 260
Joined: Thu Sep 30, 2010 3:32 pm
Location: S.E. TN

by lechat

I think you could probably remove a chunk of material and still retain their stiffness. You'd have to maintain their outline and not monkey with the pivots. A lot of the KCNC's flex comes from play in the pivots, especially the 1st gen. where you have aluminum on aluminum.

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PSM
Posts: 1570
Joined: Tue Aug 28, 2012 2:45 pm
Location: Stockholm, The Arctic...

by PSM

[quote="Frankie - B"]Do we need to ban psm from weight weenies because of his responses. I suggest a couple of hours, purely for not being ww enough. ;)

:lol:

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PSM
Posts: 1570
Joined: Tue Aug 28, 2012 2:45 pm
Location: Stockholm, The Arctic...

by PSM

DRILL THE FRAME AS WELL !! :D

kevosinn
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by kevosinn

HAHA THATS NEXT!! .......not
Www.crypticcycles.com Custom carbon frames, bar/stem combos, repair and component tuning.

deluxerider
Posts: 33
Joined: Thu Dec 06, 2007 11:32 pm
Location: Denver, CO

by deluxerider

very cool. it looks very race only.

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Valy
Posts: 152
Joined: Tue May 29, 2012 11:16 pm

by Valy

mad, but i gotta ask - did you make the arm thing on FD shorter with the tuned part? Would not that make shifts require more effort?

kevosinn
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by kevosinn

Nope the arm is the same length!
Www.crypticcycles.com Custom carbon frames, bar/stem combos, repair and component tuning.

oysters
Posts: 60
Joined: Tue Mar 20, 2012 1:19 am

by oysters

kevosinn wrote:The cut off bolts worked perfect! Probably didn't save much weight but it looks cleaner.


How long were the bolts after you had cut them down? Would these have fit/done the job (the "Titanium Platform Pedal / Socket Set Screws" on the page below). Being allen head grub screws, it wouldn't matter if they didn't protrude from the top of the derailleur so that you can use a screwdriver. Not sure if there would be a much of a weight difference between a cut down Al bolt vs a slightly recessed Ti grub screw, though the latter might be more elegant.

http://www.torontocycles.com/Selling/Titanium.html" onclick="window.open(this.href);return false;

I think they also sell an 11mm long version.

austke
Posts: 204
Joined: Mon Jan 16, 2012 7:03 am
Location: Queensland Australia

by austke

I love Colnago's and I love Tuning, Both together is TOTALY AWESOME!!!
Top work, I like the bare essentials look that tuning gives, Yes Racy, is what somebody mentioned. I agree. :beerchug:

I am about to attack my brand spankers XTR front mech (which unfortunately weighed exactly the same as my cheapo no name brand front mech, 127gr) and shifters that are for my rather average Triple Tandem. All in the pursuit of weight Weenieness, not looks. 8)

austke
2013 Giant TCR Advanced SL 0, 6.92kg
2013 Giant Defy Composite 2 M, 8.5kg - Wife's
Azzurro Torino 8.55g
Fuji 650 10.8kg
Miele Lupa Triple Tandem 38,89kg

markyboy
Posts: 648
Joined: Wed Dec 29, 2010 10:22 pm
Location: Bristol uk

by markyboy

Does it effect the function of the rear mech at all with all the changes?
COLNAGO C60 SUPER RECORD EPS
Pinarello f8 sram etap
Eddy merckx 69 ultegra disc winter bike

kulivontot
Posts: 1170
Joined: Sun May 16, 2010 7:28 pm

by kulivontot

I'm ok with this. I think I draw the line at drilling structural components. IE wheels, seat post, frame, saddle rails... Although I am aware others here have no qualms with this...

kevosinn
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Joined: Mon Mar 05, 2012 7:28 am
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by kevosinn

The front and rear derailleur work EXACTLY the same as stock. You really can't tell a difference. I'm planning on drilling it out more to get it under 140 grams.
Www.crypticcycles.com Custom carbon frames, bar/stem combos, repair and component tuning.

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