Weight Weenies

Posted: **Mon Mar 27, 2006 5:54 pm**

Hi,
I finally got the last parts I needed to finish the clamp for my EC90 ZeroOffset seatpost.
The post itself is a 260mm/31.6mm Easton EC90 Zero. With the original clamp it weighed 162grams, which was pretty nice, but every 5year old child could see that there's a lot of tuning potential in the clamp..... The thing was huge and ugly as well, so I had to do something.

The first thing I did, was filing off some material of the carbon halfpipe. It weighs 11grams now.
Second step was to order some aluminium beams from AX-Lightness, which I had to modify a little bit, because they didn't fit the Becker carbon-saddle.
3rd step: The bolts are titanium M6 ones, and weigh only 7grams :shock:

.... I thought they were like 10-12gr.? I had to widen the "tunnels" of the post were you put the bolts through a little bit, because the original bolts were only M5.

complete weight: 113grams. So i lost 49grams with modifying the clamp :lol:

See all pictures here:
http://photoalbum.powershot.de/album.php?albumid=11687

Posted: **Mon Mar 27, 2006 5:54 pm**

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Posted: **Mon Mar 27, 2006 5:54 pm**

more ...

Posted: **Mon Mar 27, 2006 5:55 pm**

EDIT: sorry for double post! pressed "quote" instead of "edit"

one more....

Posted: **Mon Mar 27, 2006 6:14 pm**

very nice job Felix.

Posted: **Mon Mar 27, 2006 6:44 pm**

Nice job Felix! I like it how you modified the post to use the AX beams, impressive weight together with that saddle

Posted: **Mon Mar 27, 2006 6:51 pm**

i am curious how it wil hold up... the stresses on the rails are much higher than the original clamp!

Posted: **Mon Mar 27, 2006 6:53 pm**

Very nice job indeed Felix! Good thinking to replace the original clamp with new parts - it makes it even more impressive that this is one of the things that you can actually get away with doing even if you're "forced" to ride certain components due to sponsorship agreements. :thumbup:

@tommy: As I see it the design that Felix has achieved is much like M2, Extralite and New Ultimate, and I know of at least one rider using the NU seatpost with a Becker seat, on his hardtail MTB. I would not worry about durability.

Posted: **Mon Mar 27, 2006 7:21 pm**

thanks Boonen&Madcow!

@tommy: Well, Knut said everything that's got to be said

@Knut:

Posted: **Mon Mar 27, 2006 8:11 pm**

very cool felix ,tuning is the way to go :thumbup:

Posted: **Mon Mar 27, 2006 8:25 pm**

Nice job, I have the same Easton only in 27.2mm so maybe I'll look to cut some weight on that too!

Posted: **Mon Mar 27, 2006 8:38 pm**

Very nice Felix

Posted: **Mon Mar 27, 2006 10:08 pm**

Saving 49grams on the clamp alone :shock:

Really cool~!

Posted: **Mon Mar 27, 2006 10:39 pm**

Felix--great job. Did you know that AX will be selling the seatpost beams in CARBON in a few months (and they will come on their new SLS AX seatpost models as well)--thus you can even save 18g MORE!!!!!

Maybe you can share this w/Easton??

Posted: **Mon Mar 27, 2006 10:46 pm**

I "tuned" my 31.6 Thomson Masterpiece by cutting off 2" that weren't needed. That saved me 24g! Not bad.

Posted: **Mon Mar 27, 2006 10:46 pm**

Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓

www.starbike.com

Posted: **Tue Mar 28, 2006 12:17 am**

[quote="Gold Knight"]Felix--great job. Did you know that AX will be selling the seatpost beams in CARBON in a few months (and they will come on their new SLS AX seatpost models as well)--thus you can even save 18g MORE!!!!![quote]

Any more info on the SLS posts?

Weight Weenies

Finally: I tuned my seatpost from 162 to 113grams.

Finally: I tuned my seatpost from 162 to 113grams.

Finally: I tuned my seatpost from 162 to 113grams.

!