Show me Your Tuning!

Discuss light weight issues concerning road bikes & parts.
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andreszucs
in the industry
Posts: 451
Joined: Mon Nov 28, 2011 7:15 am

by andreszucs

Just did another modification using a BlackOps seatpost: http://kbcyclewerks.com/wp-content/uplo ... tpos11.jpg

Before: Original weight for 27.2/350mm on my scale was 190g.
Stock tube
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Stock craddle
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Stock Yokes
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Stock Pin
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Ti Bolts
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Major modification: Head was chopped (titanium hardware around and inside)...and I added an extra carbon tube inside the make it thicker before drilling, I used an leftover tip of Zipp Vuka extension bar and fitted just perfect inside! I used epoxy for maximum bonding.
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AFTER: 146g
tube after mod: 104g
homemade craddle (carbon): 12g
China yokes: 12g
Homemade pin: 10g
same bolts:8g

Image

1spd
Posts: 175
Joined: Fri Jun 15, 2012 2:27 pm
Location: Gaithersburg, Maryland

by 1spd

Pretty sweet!
Cannondale Synapse (alu)...it works

by Weenie


darnellrm
Posts: 183
Joined: Thu Sep 10, 2009 1:06 pm
Location: NC, USA

by darnellrm

Good work, but still heavy for a 27.2 post though.

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andreszucs
in the industry
Posts: 451
Joined: Mon Nov 28, 2011 7:15 am

by andreszucs

darnellrm wrote:Good work, but still heavy for a 27.2 post though.


I agree, tube has a pretty thick wall. As I will be using on a Hardtail MTB I might as well think it's a good weight for the strength offered.

Telsun
Posts: 8
Joined: Mon Sep 30, 2013 7:03 am

by Telsun

This thread should be made a sticky!

Telsun
Posts: 8
Joined: Mon Sep 30, 2013 7:03 am

by Telsun

weeracerweenie wrote:To start off ill put forward my contributions, i being 17 / 18 years old and having little money :( So to get my ride under the magic 5.00kg i took to it with a small range of power tools! Here goes:

Tuned Sram Red Rear Derailleur, 11 hours worth of work on it, final weight = 104.67 Grams. Saving of just over 40 grams. Have ridden over 5000km on it with no major failures (bar jockey wheels, see "AFC Pulley Wheel Review" Thread). Light and functional, and i think its pretty too... Plans to go under 95 Grams yet!

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What did you actually do to shave so much weight of the rear mech?

voodoojar
Posts: 659
Joined: Sat Mar 19, 2011 10:50 pm

by voodoojar

Here are some of mine that I spent a lot of time on. well except the felt hoods those only took like 5 minutes.
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liketoride
Posts: 302
Joined: Wed Nov 21, 2012 3:05 am

by liketoride

great wt on both FD-RD, what FD is that? Sram?

voodoojar
Posts: 659
Joined: Sat Mar 19, 2011 10:50 pm

by voodoojar

It's a Tiso.

wrcompositi
Posts: 119
Joined: Tue Dec 04, 2012 3:57 am

by wrcompositi

voodoojar wrote:Image

Can you elaborate more on the eggbeaters' modification? The weight is impressive!

liketoride
Posts: 302
Joined: Wed Nov 21, 2012 3:05 am

by liketoride

how is the front shifting with the Tiso?

voodoojar
Posts: 659
Joined: Sat Mar 19, 2011 10:50 pm

by voodoojar

wrcompositi wrote:Can you elaborate more on the eggbeaters' modification? The weight is impressive!


hollow spindle, ti spring, aluminum sleeves, ceramic bearing, aluminium nut, plastic end caps and a bunch of material taken of the body. Take all the grease out before you weigh them :D

weeracerweenie
Posts: 452
Joined: Mon Aug 15, 2011 4:48 am

by weeracerweenie

Telsun wrote:
weeracerweenie wrote:To start off ill put forward my contributions, i being 17 / 18 years old and having little money :( So to get my ride under the magic 5.00kg i took to it with a small range of power tools! Here goes:

Tuned Sram Red Rear Derailleur, 11 hours worth of work on it, final weight = 104.67 Grams. Saving of just over 40 grams. Have ridden over 5000km on it with no major failures (bar jockey wheels, see "AFC Pulley Wheel Review" Thread). Light and functional, and i think its pretty too... Plans to go under 95 Grams yet!

Image

Image



What did you actually do to shave so much weight of the rear mech?


Lots and lots of re shaping and work. The mount bolt is significantly shaped (conclaved in the centre) that took a lot of weight out. The front parallel arm took a massive hot to with the dremelling. Lots of little things.
I guess there's worse hobbies than making a bike light? Right?

jockalldrick
Posts: 32
Joined: Mon May 14, 2012 11:49 pm

by jockalldrick

This is what weight weenies is all about
Keep up the good work guys

addictR1
Posts: 1220
Joined: Sun Jun 10, 2012 1:11 am

by addictR1

Yea I like to know more about the eggbeaters too.

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by Weenie


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