Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Thu Aug 25, 2016 9:44 pm
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 20 posts ]  Go to page 1 2 Next
Author Message
PostPosted: Sat Jan 26, 2008 1:23 pm 
Offline

Joined: Fri Jan 27, 2006 1:38 pm
Posts: 679
Location: Greater Pittsburgh
I know that PowerTap recommends to have 2x lacing on the non-drive side due to torque measurements being done on that side.

With that in mind, can you lace a PowerTap SL into a 24 hole rim that is currently laced 2x drive and radial non-drive (I have an extra Real Design SuperSonic 60)?

_________________
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 1:55 pm 
Offline
User avatar

Joined: Tue Jan 23, 2007 11:22 am
Posts: 3657
Location: Leg hurty
Powertap hubs should always be laced 3x all round, its a stipulation to the warranty i beleive. :)

_________________
Pedalling Law Student.


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 2:00 pm 
Offline

Joined: Sun May 21, 2006 3:06 am
Posts: 239
They recommend 3 cross but the tech document says:

"Use at least a two-cross pattern on both sides of the hub. Due to the design of the hub, the load path is not the same as with a conventional hub. Slotting the hub flanges to accommodate bladed spokes is not recommended and will void the warranty."

Page 6

http://www.cycleops.com/pdfManuals/308.pdf


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 2:29 pm 
Offline

Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3915
Location: lat 38.9677 lon 77.3366
The drive side is the side without the cassette on a powertap I did what your thinking about and I would not recomend it. To save my build I respoked it 2x drive 1x non drive with zipp 303 rims. It works fine now but IMO the traditional build is better

_________________
WW Velocipedist Gargantuan


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 5:06 pm 
Offline
Shop Owner

Joined: Sun Jan 08, 2006 9:12 am
Posts: 2194
Location: Alto, NM
rd wrote:
"Use at least a two-cross pattern on both sides of the hub. Due to the design of the hub, the load path is not the same as with a conventional hub. Slotting the hub flanges to accommodate bladed spokes is not recommended and will void the warranty."


The load path is not the same as a regular hub, but with such a stiff hub body it makes no difference so long as at least one side is crossed 2x. But... I was told that they won't warranty the hub flanges if it is not laced at least 2x on both sides... so that is something to consider. Frankly, I don't see the hub flanges failing in any case, but it would suck if they did.


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 5:07 pm 
Offline
Shop Owner

Joined: Sun Jan 08, 2006 9:12 am
Posts: 2194
Location: Alto, NM
rustychain wrote:
The drive side is the side without the cassette on a powertap I did what your thinking about and I would not recomend it.


Why?


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 5:23 pm 
Offline
User avatar

Joined: Tue Jan 23, 2007 11:22 am
Posts: 3657
Location: Leg hurty
WHEEL BUILDING
Contact a wheel building professional or dealer for assistance in building the PowerTap SL2.4 wheel if not purchased as a complete wheel. Both sides of the PowerTap should be built using only a 3x spoke lacing pattern. Due to the design of the hub the load pattern is not the same as a conventional hub. Slotting the hub flanges to accommodate bladed spokes is not recommended
and will void the warranty. Complete wheel building hub dimensions are listed in TABLE 2.
This was lifted out of the assembly instructions on a PDF file. :wink:

_________________
Pedalling Law Student.


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 7:05 pm 
Offline

Joined: Mon Mar 14, 2005 8:20 am
Posts: 156
hi,

i made my brothers power tap wheel 32 hole with an pro rim crossed 3 times, used sapim spokes, and every few rides a spoke broke just out of the nipple, when i looked at it the spoke made an angle just outisde the nipple ( sapim )

now i ve crossed the 2 times and the problem is gone.
so i think it is better 2 times crossed left and right

good luck building it

leon


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 7:33 pm 
Offline

Joined: Sat Jan 14, 2006 1:17 am
Posts: 615
Location: UK/Singapore
pardon my ignorance but is it even possible to lace a wheel 3x if it's a 20H or 24H PT hub?


Top
   
 Post subject:
PostPosted: Sat Jan 26, 2008 10:23 pm 
Offline

Joined: Fri Jan 27, 2006 1:38 pm
Posts: 679
Location: Greater Pittsburgh
Ok, thanks all. I *think* I understand the answers... I can't simply buy a 24H PT SL hub and have someone lace it to my existing rim... Oh, well... guess that means that I will need a hub AND a rim...

_________________
"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin


Top
   
 Post subject:
PostPosted: Sun Jan 27, 2008 12:40 am 
Offline

Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3915
Location: lat 38.9677 lon 77.3366
Ruff, a bunch of broken xray spokes bets you that it make a dif. Those spokes are the ones that broke after but 1200 miles when I had the hub built with the cassette as the drive side. After the rebuild no issues. I will never go this way again however. If I build a PT wheel again its going on a Lew rim IF I can get Lew and PT to agree on build specs

_________________
WW Velocipedist Gargantuan


Top
   
 Post subject:
PostPosted: Sun Jan 27, 2008 1:44 am 
Offline
Shop Owner

Joined: Sun Jan 08, 2006 9:12 am
Posts: 2194
Location: Alto, NM
audiojan wrote:
Ok, thanks all. I *think* I understand the answers... I can't simply buy a 24H PT SL hub and have someone lace it to my existing rim... Oh, well... guess that means that I will need a hub AND a rim...


Oops! I guess nobody is answering your question directly. Unless there is something weird with the rim, the lacing pattern can be whatever you wish... it doesn't need to be the same as the original wheel.

On the other hand a new rim would be a small part of the total cost.


Top
   
 Post subject:
PostPosted: Sun Jan 27, 2008 1:46 am 
Offline
Shop Owner

Joined: Sun Jan 08, 2006 9:12 am
Posts: 2194
Location: Alto, NM
rustychain wrote:
Ruff, a bunch of broken xray spokes bets you that it make a dif.


Which spokes broke? And were both builds done by the same person to the same specs?


Top
   
 Post subject:
PostPosted: Sun Jan 27, 2008 5:20 am 
Offline

Joined: Tue Jun 22, 2004 11:42 pm
Posts: 3915
Location: lat 38.9677 lon 77.3366
Built by the same guy that has built some great mtn bike wheels for me in the past. The spokes broke on the non cassette side (drive side) when laced radial. After multiple spoke failures and a bit of research the wheel was built 2x and the non cassette side (drive side actual) He simply reversed the spoke pattern. No further broken spokes. Further research show me that Zipp does not recomend 3x on the 303's, PT says you should go 3x! The whole thing was a waste IMO as I could have purchased a prebuilt that would have performed just as well and been covered by the warrenty

_________________
WW Velocipedist Gargantuan


Top
   
 Post subject:
PostPosted: Sun Jan 27, 2008 5:48 am 
Offline

Joined: Sun Jan 27, 2008 5:10 am
Posts: 7
Location: USA
I just built a Zipp 404(24spoke) with the PT wireless hub. Prior to building it, I contacted Zipp. They said they lace them 2x on both sides. I purchased Sapim spokes from wheelbuilder.com and they also said 2x on both sides. PT says minimum of 2x on both sides. I also have a PT/Mavic open pro(32spoke) which I got direct from PT and guess what, it is 2x on both sides.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 20 posts ]  Go to page 1 2 Next

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Replacement rims in 18F and 24R with 2:1 lacing?

in Road

NiFTY

1

205

Fri Apr 01, 2016 8:52 am

fabriciom View the latest post

There are no new unread posts for this topic. What to buy? Garmin Vector 2 or Powertap PT1

in Road

lotushiast

11

1577

Mon Nov 16, 2015 11:18 pm

mr4fox View the latest post

There are no new unread posts for this topic. Powertap C1 and Campagnolo 10 speed drivetrain

in Road

ChristianB

8

212

Sat Apr 30, 2016 9:02 pm

ChristianB View the latest post

There are no new unread posts for this topic. Attachment(s) just in and question

in Road

Poulidor

3

394

Sun Nov 15, 2015 4:57 am

AJS914 View the latest post

There are no new unread posts for this topic. Question about a shop in UK

in Road

pdiomidis

4

358

Mon Jul 04, 2016 2:19 pm

pdiomidis View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Arrgo1, Bing [Bot], djel, KarlC, MrDeia, Slack, snowdevlin, wedgie, WESTMOTORSPORTS, XCProMD, Yahoo [Bot] and 47 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited