Go Back   Cycling Forums » Bikes » Power Training
Power Training This is the place to talk about training and racing with power (watts) measuring devices such as Polar 710/720, Power Tap, SRM or any other power measuring device.













Will a 24 spoke DT Swiss Powertap go out of true too easy? - Page 2

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #16  
Old 11-20.-2007
holli's Avatar
Registered User
 
Join Date: Jan 2003
Location: Winnipeg, MB, Canada
Posts: 153
Rep Power: 7
holli
Default Re: Will a 24 spoke DT Swiss Powertap go out of true too easy?

Quote:
Originally Posted by holli
Well...24 DT competitions spokes, PowerTap SL 2.4 and American Classic 420 is strong enough for a 175lbs rider so stronger rim under your feathery 115lbs will work just fine. Just make sure to use good wheelbuilder.
I know I posted this myself some time ago. However I'm planning to order a PT SL 2.4 hub for myself and was thinking that would it still be better to get 28h hub since I weight porky 78-79kg/~175lbs at the moment. I'll get that down to 73-75kg/160-165lbs before the spring comes though. I'm going to build it to Kinlin XR-300/Niobium 30/Cadence Aero rim so I think 24h should be strong enough for me, but would four more spokes make it conciderably stronger without trading in too much aero benefits? Not that this is super aero wheel to begin with.

Roads here are pretty bad or sometimes very bad. 24h hub, two cross DT Competitions, 30mm rim or 28h hub two cross DT comps or Revos, 30mm rim???
__________________
Pain is just weakness leaving the body.
Reply With Quote
  #17  
Old 12-23.-2007
Registered User
 
Join Date: Nov 2006
Posts: 40
Rep Power: 0
kytyree is on a distinguished road
Default Re: Will a 24 spoke DT Swiss Powertap go out of true too easy?

I apologize for not checking back in a bit but regarding the spoke tension, yes I feel like it was pretty obvious. Each of the spokes that are on the same side of the hub should to a certain extent be under the same amount of tension. Mine out of the box had spokes that looked like they had been laced but never adjusted, it was round but there is a little more too it than that.

That's why I suggest taking those prebuilt wheels to a shop, I would think any shop that builds wheels would be able to check the tension of the spokes and if its not in the powertap manual then they will be able to look up the right tension for that particular hub and the way that it is built up. A quick check at home is too pluck each of the spokes they should have kind of a musical note to them, if one is too loose to pluck or sounds a lot different than the rest you might have problems.
Reply With Quote
  #18  
Old 12-23.-2007
Registered User
 
Join Date: Dec 2007
Posts: 66
Rep Power: 2
waterrockets is on a distinguished road
Default Re: Will a 24 spoke DT Swiss Powertap go out of true too easy?

Quote:
Originally Posted by kytyree
I would think any shop that builds wheels would be able to check the tension of the spokes and if its not in the powertap manual then they will be able to look up the right tension for that particular hub and the way that it is built up.
Tension is actually specified by the rim manufacturer. Most popular rims (Mavic OP&CXP, Velocity, DT, etc) recommend 110-120kgf for the rear. If you send the Mfg a quick email, they'll probably tell you what they recommend.
Reply With Quote
  #19  
Old 12-23.-2007
Registered User
 
Join Date: Nov 2006
Posts: 40
Rep Power: 0
kytyree is on a distinguished road
Default Re: Will a 24 spoke DT Swiss Powertap go out of true too easy?

Your right its not in the Powertap manual, at least not mine, there is some pretty specific information in there as far as how they think it should best be built up but not the tension. DT Swiss has a chart for all of their rims on their website, though it is in Newtons.

One thing I noted when I was looking at that chart on their site is that all of those DT rims have a weight limit placed on them, its not that low but I am little suspicious of an aluminum box section rim that has a weight limit similar to what you see for most extremely lightweight rims.

Here is a question for one of you: DT always known for their spokes made hubs for awhile under the Hugi name (and I like my DT hubs) but how long have they been making rims under their name or another?
Reply With Quote
  #20  
Old 12-23.-2007
Registered User
 
Join Date: Dec 2007
Posts: 66
Rep Power: 2
waterrockets is on a distinguished road
Default Re: Will a 24 spoke DT Swiss Powertap go out of true too easy?

Yeah, a weight limit for a rim is a silly specification for them to list. A 24h wheel built with 2.0/1.5/2.0 spokes laced 2x is going to be a lot less durable than the same rim with 32h 2.0/1.8/.20 laced 3x.

1100N = 112kgf
1200N = 122kgf
http://www.members.optusnet.com.au/n...ers/force.html

I don't know how long they've been making rims, but I think it's <10 years. They are well regarded, but I've been more than happy with Velocity. I'm lukewarm on Mavic. Never built/ridden DT.
Reply With Quote
Reply

Bookmarks

Tags
easy, powertap, spoke, swiss, true

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 10:16 AM.

Powered by: vBulletin Copyright © 2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.3.0
Copyright © 2001 - 2009 cyclingforums.com

Translations (powered by Google):
Bulgarian Croatian Czech Danish Dutch English Finnish French German Italian Japanese Korean Norwegian Polish Portuguese Spanish Swedish