Dura Ace 9000 - ETA late 2012/early 2013

Discuss light weight issues concerning road bikes & parts.
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2ndgen
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by 2ndgen

CamW wrote:Also lets be honest, the vast majority of people run Dura-Ace rings on Dura-Ace cranks..... partially coz any other option looks hideous :oops:


I think we have an improvement on that... ;)

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topflightpro
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Joined: Tue Jan 13, 2009 2:35 am

by topflightpro

You can save weight on a crankset by incorporating the fifth chainring bolt into the crank arm as opposed to using a five arm spider set up.

by Weenie


BdaGhisallo
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by BdaGhisallo

2ndgen wrote:
CamW wrote:Also lets be honest, the vast majority of people run Dura-Ace rings on Dura-Ace cranks..... partially coz any other option looks hideous :oops:


I think we have an improvement on that... ;)

Image


I don't see these on the Praxis website. What's the story? How do they shift compared to stock 7900 rings?

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2ndgen
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by 2ndgen

BdaGhisallo wrote:
I don't see these on the Praxis website. What's the story? How do they shift compared to stock 7900 rings?


It's on their Facebook page... https://www.facebook.com/PraxisWorks

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AptosBigRing
in the industry
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by AptosBigRing

Hey guys...
Yep... Glad you found this as we just pulled the curtain back on it here at the Taipei show this week.

Hoping to have these Ring/Bolt kits avail soon... finalizing some things on it.
It's for the DA 7950 crank for now. That way we'll be able to do Praxis 'DuraAce 7950' ring kits for about 5 combos. We're planning on having kits for Cyclocross 46/36, 48/36 and then in road we'll have 50/34, 50/36, and 52/36 also.

Hope you dig 'em!

Adam@Praxis
Praxis Works
Manufacturer
Praxis Works
Manufacturer
Santa Cruz, CA
www.praxis-works.com

justkeepedaling
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by justkeepedaling

That's hot as hell, but any plans for standard?

bikedoc
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by bikedoc

so its a normal ring but you have made a'nut' that blends in with the crank arms?

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lancejohnson
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by lancejohnson

brearley wrote:http://www.bikerumor.com/2012/01/15/hydraulic-shimano-dura-ace-brake-lever-leaked/" onclick="window.open(this.href);return false;

think this is more possible


I'm fairly certain that Factor001 developed those levers themselves, not with Shimano. They took the lever and the electronics from the DA lever and grafted them into a body that they developed on their own to work with hydraulic levers. I talked to them a while ago about doing hoods for the levers, but they seem never to have gone into production with the bikes; at least not that I know of...
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SlipperyT
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Joined: Tue Nov 29, 2011 2:29 pm

by SlipperyT

At least they can move some NOS Biopace Exage 400ex cranks from 22 years ago. :D

2ndgen wrote:
hansonator69 wrote:That's a strange crankset :\


solarider wrote:Oh no, not another chainring standard!!!!

Look pretty cool, but over a quarter of the chainring is unsupported. Sure they have done their homework.


Seeing how the crank's spokes are placed in very specific areas,
I'd bet it has something to do with torque forces on a pedal stroke
like oval rings.

Phill P
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by Phill P

AptosBigRing wrote:Yep... Glad you found this as we just pulled the curtain back on it here at the Taipei show this week.



Damn you were in Taipei- I completely missed your stand!

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STARNUT
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by STARNUT

whoa..... off topic a second. Is that the same Adam that was my old inside sales guy at Look? If so.....my ninja :mrgreen:

Starnut
"Don't pedal harder, pedal faster!"
Q-FACTOR IS A RED HERRING

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getting dropped
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by getting dropped

It is the same Adam...

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Gazelleer
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Location: Netherlands

by Gazelleer

New pictures of the rear derailleur, crankset and (part) front derailleur, from the Dutch magazine Fiets:
Attachments
IMG_4615kwart.jpg
rear derailleur
IMG_4613kwart.jpg
crankset

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kgt
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Location: Athens, Greece

by kgt

Wow. As ugly as it gets!

by Weenie


TuplaO
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Joined: Fri Apr 08, 2011 7:00 pm

by TuplaO

Wow, that is butt ugly. :shock: Especially the cranks. I'd be very surprised if the end product looked like that (shape-wise, that is).

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