The wheelbuilding thread

Everything about building wheels, glueing tubs, etc.
shimmeD
Posts: 389
Joined: Thu Jun 28, 2012 10:52 pm
Location: eNZed

by shimmeD

BHS has discontinued TB25 so not on their site anymore.
It's 592
Less is more.

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LouisN
Posts: 2343
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

Nah, unmounted my wheels today. Measured ERD is 588-589.
It's a spoke cutting and threading day ... :)

Louis :)

ddsg
Posts: 34
Joined: Sun Dec 08, 2013 10:30 pm

by ddsg

Can someone help me with spoke length? I'm trying to build up a set of Flo 45 rims with Bitex RAF10/RAR9 (20/24). ERD is 548.4mm. Radial front and 2 cross rear.

I've tried plugging the numbers into different calculators online and I get differing numbers from all of them...

bm0p700f
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Location: Glermsford, Suffolk U.K
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by bm0p700f

Always use spokecalc. Download the spreadsheet from Sheldon brow bar site. It never lies unless you put the wrong lengths in.

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WinterRider
Posts: 349
Joined: Tue Feb 05, 2013 2:46 pm

by WinterRider

https://leonard.io/edd/

Same math algorithms as calc.. more user friendly.. can input variations on the cross..nice for figure more complex lacings.

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LouisN
Posts: 2343
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

HI again all builders ,
Question (sorry if it's been covered before): What ERD number do I use for Shimano internal nipples on a Shimano C75 tubular build ?
Do I have to add a few mm's to the ERD, since the spokes have to enter the rim more than a standard nipple ? By how many mm's ? ...
I use Spokalc spreadsheet.
Thanks :beerchug: !
Louis :)

duvla
Posts: 1
Joined: Fri Aug 31, 2012 7:51 pm

by duvla

Hi folks, I would appreciate some help from you!

I got a set of Ritchey WCS Road Rim brake Hubs, new 'phantom flange' version, 20/24 holes. Lacing pattern, front radial, back radial/2 cross.
The set weighs only 68+218g, and I thought that I could make a same/similar wheelset to the Zeta II wheels this hub is actually made for.

Unfortunately there is no way that I can buy Zeta II rims (both asymmetrical), the nearest cousin seems to be DT rr411 / rr411 asymmetric.

My actual question is - Ritchey uses 44 DT Swiss New Aero spokes, the heaviest aero spoke they make for both Zeta II and much pricier Apex wheels, and probably with a good reason.
I have found those on special order for some 3 euro/piece, but I would rather pay a little less if that is possible.
Alternatives are:

- CN Aero494 as a direct substitute for New Aero only much cheaper and probably of much lesser quality

- DT Aero Comp as a middle road version, still very sturdy but lighter and much cheaper (around 1.59 euro/pice)

- Sapim CX-Ray - going down the lightweight route, but I am not sure if that isn't a dumb move, I weigh 85kg and the roads where I live are quite bad, I am not sure that ~1400g wheelset is a good choice for me.

If the price and weight of DT New Aero spokes would prove worthy in the long run, and make the wheels stay true and sound for a while I don't mind parting with the money, I just don't know if there is any real advantage vs Aero Comp spokes which should (in my humble opinion) do the same job.

Bike is a 2015 Canyon Ultimate CF, some 6.9kg with current Ksyrium Elite S set, not used for racing, I am too old for that now :)

What do you folks think? Thanks in advance!!!

Zeta.JPG
WCS.jpg

Marin
Posts: 2754
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

CN494 are great, I use them on the rear DS on a few wheels.

Timmy269
Posts: 170
Joined: Tue Nov 25, 2014 2:34 pm

by Timmy269

I have DT swiss rc55spline wheels and it looks like the braketracks are wearing out. Can I buy new rims of DT Swiss without spokes and without hubs?

bm0p700f
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by bm0p700f

DT rims are not available after market.

Louis the answer is always measure erd with the internal nipples.

For a 24 spoke rear you need a stiff rim at your weight. If it were me I would be using the kinlin xr31t and CX rays or the stiffer aero comps if you want a stiffer wheel. A shallower rim can be used if thicker spokes are used but the first option is better.

Timmy269
Posts: 170
Joined: Tue Nov 25, 2014 2:34 pm

by Timmy269

bm0p700f wrote:
Tue May 29, 2018 8:33 am
DT rims are not available after market.
Which carbon rims do you recomand. I can spoke the myself with the spokes and hubs of my DT swiss that I now have?

bm0p700f
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by bm0p700f

You need. Rim with matching erd to reuse spokes and will dictate the rim. That will require Google and trust to get the right one.

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pashax
Posts: 36
Joined: Tue Dec 09, 2014 10:48 pm
Location: London

by pashax

Did anyone ever use Ambrosio P20 rims ? Are they any good ?
"If you brake, you do not win". MC

bm0p700f
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by bm0p700f

i build with them and I like them. tyre fitting is a tight so best used with tubeless tyres. nice and round, flat wide internally and they stiff enough for low spoke counts.

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LouisN
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Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

bm0p700f wrote:
Tue May 29, 2018 8:33 am
Louis the answer is always measure erd with the internal nipples.
I ended up using the Extralite website suggested method.
https://www.extralite.com/Products/meas ... %20SED.htm
Came just spot on.

Louis :)

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