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PostPosted: Fri Jun 14, 2013 9:27 am 
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Location: Denmark. Yeeees
Would you guys choose the Archetype on CK R45 with CX Rays over at set over the new set of carbon clincher wheels from farsports?
http://www.farsports.cn/product/detail.php/id-142.html

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PostPosted: Fri Jun 14, 2013 1:15 pm 
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Location: Surrey UK
With these given details, probably the question you would have to answer yourself.
Eventually you can seek the help here: http://www.flickr.com/photos/90178027@N02/9042037808/ :wink:
These wheels are so different that it is hard to compare them. And giving anybody any recommendations without knowing details determining your wheels choice, is impossible.

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Posted: Fri Jun 14, 2013 1:15 pm 


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PostPosted: Fri Jun 14, 2013 5:57 pm 
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Simon: How are you stress relieving the spokes? CX-Rays make it easy to build with no wind-up, but as WMW said, stress relief is most definitely needed.

Bob


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PostPosted: Sun Jun 16, 2013 8:40 pm 
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Location: Ruidoso, NM
Simonhi wrote:
WMW wrote:
Realising now that you mean ( I think ) setting the spoke path (required more for head in spokes bending over the hub flange) I can't be sure that I did that, since the wheelset was built over six months ago and sat in a bag until a few weeks ago.

Is there a minimum spoke tension you would be worried about going below on the non-DS ???


Stress relieving is specifically taking spokes past yield so that the residual stresses (at the elbow especially) are relieved. Fatigue strength is greatly improved by this.

Improving the spoke path is another issue. I bend the spokes slightly at the J, cross, and above the threads. After several rounds of stress relieving everything is in the optimal state.

If you didn't do these steps it is likely that considerable bending and settling occurred after the build.

If the rim is fairly straight you should have no more than 5kg variance on the NDS. The max DS tension and the hub geometry determines the NDS tension. Usually it's >50kg.

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PostPosted: Mon Jun 17, 2013 12:27 pm 
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WMW wrote:
Simonhi wrote:
WMW wrote:
Realising now that you mean ( I think ) setting the spoke path (required more for head in spokes bending over the hub flange) I can't be sure that I did that, since the wheelset was built over six months ago and sat in a bag until a few weeks ago.

Is there a minimum spoke tension you would be worried about going below on the non-DS ???


Stress relieving is specifically taking spokes past yield so that the residual stresses (at the elbow especially) are relieved. Fatigue strength is greatly improved by this.

Improving the spoke path is another issue. I bend the spokes slightly at the J, cross, and above the threads. After several rounds of stress relieving everything is in the optimal state.

If you didn't do these steps it is likely that considerable bending and settling occurred after the build.

If the rim is fairly straight you should have no more than 5kg variance on the NDS. The max DS tension and the hub geometry determines the NDS tension. Usually it's >50kg.


Thanks for the infromation, a handy reminder when building again.

When I rebuilt at the weekend I noticed that the Non-DS spokes were not set towards the spoke holes meaning that I did not form them as I normally would do. I think that coupled with not maintaining even spoke tension throughout the build has most likley contributed to the wheel coming undone.

I will make sure I pre-stress the wheel also, really can't remeber whether this was done before or not, possible not as I (wrongly) assumed it was not required due to no spoke wind-up.

Thanks for all the information, all help for future builds I'm sure :thumbup:

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PostPosted: Sat Jul 13, 2013 9:59 am 
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Location: Slovenia---that forest land
Mine build - i love it! weight of rims are around 480g - but at acceleration it feeling like they are lighter.

Image

Image

Image

on BARTIME ceramic hubs rear Powerflange for stiffer wheel

Image

Image

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PostPosted: Wed Jul 17, 2013 9:46 am 
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Joined: Fri Jan 09, 2004 6:38 pm
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Location: France
Kavitator,

May I ask you, how much did you have to bend the spokes on the NDS with that rear hub when installing them. I can see how to install the NDS spokes that have heads in through the drive side window, but the spokes that are elbows in / heads out must be very hard to install. Any trick ?

Interesting rear hub... that's why I'm asking :wink: .

Thanks !


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PostPosted: Wed Jul 17, 2013 12:19 pm 
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Location: Slovenia---that forest land
Rear hub is from two parts and adjustable flange spacing for classic (10 speed) or 11 speed shimano

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