HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 15 posts ] 
Author Message
PostPosted: Sun Jul 08, 2012 5:35 pm 
Offline

Joined: Mon Jan 07, 2008 9:09 am
Posts: 94
Location: England
Hi,
i am about to build a pair of wheels with Alpha 340 rims 28 rear and 24 front and Tune Mag 170 rear hub and Mig 70 front hub. I want to use 14mm prolock nipples and cx ray spokes.
I have two questions:-
1. Spoke length calculated is Rear 3 cross Drive 293, Non Drive 291. Front 2 cross 288.
Before i waste my time and money ordering the spokes does this seem right ?

2. If i use 14mm nipples should i reduce the spoke length ?

My logic says no don t reduce the spoke length ?

Thanks.


Top
 Profile  
 
PostPosted: Sun Jul 08, 2012 6:03 pm 
Offline
User avatar

Joined: Tue Apr 18, 2006 3:03 am
Posts: 1882
Location: Islip, NY
nelson wrote:

My logic says no don t reduce the spoke length ?

Thanks.


Correct.

_________________
www.ergottwheels.com


Top
 Profile  
 
Posted: Sun Jul 08, 2012 6:03 pm 
  • tune MAG 170
  • 307.00 €   from 281.00 € (including 19% VAT)
  • in stock


Top
  
 
PostPosted: Sun Jul 08, 2012 11:49 pm 
Offline

Joined: Fri May 21, 2010 3:08 am
Posts: 313
Location: Milton, Canada
Decide beforehand if you plan to use nipple washers as per Stans recommendations before deciding on a final spoke length as they are around a mm thick.

Although, I think the new revision of the Alpha 340's (if that is what you are getting) may already have a beefed up spoke bed that doesn't warrant the use of the washers.

I built mine on the old version without and they have been fine, but originally intended to use them and found the spoke lengths were on the short side if I used the washers.

Something to take into consideration at least.


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 1:36 am 
Offline
Shop Owner
User avatar

Joined: Tue Mar 10, 2009 5:27 am
Posts: 1244
Location: McCall, ID
I just checked the spoke lengths and those look good. The 12mm nips should do just fine too.

_________________
http://www.zencyclery.com


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 3:05 pm 
Offline
Shop Owner

Joined: Thu Apr 17, 2008 1:07 am
Posts: 993
Location: San Juan, Puerto Rico
Maybe the wheel builders can chime in with more info but I think you will need to go with a 2X on the rear with a 28H hub.

_________________
www.royalbicycles.com


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 3:25 pm 
Offline

Joined: Tue Sep 14, 2010 3:28 pm
Posts: 1404
Well the rule of thumb is divide the spoke count by 9 for maximum crossings. 9 goes into 28 3 times so 3 should be the maximum crossing. Otoh I once built a 36 hole wheel with a Dura-Ace 7800 hub and an open pro rim with 4 cross and I just barely ran into the spoke heads.I'm not sure if the flange diameter plays a role in that though? Fwiw Alchemy recommends 3cross for the drive side of 28 hole ORC hubs.


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 3:33 pm 
Offline
Shop Owner

Joined: Thu Apr 17, 2008 1:07 am
Posts: 993
Location: San Juan, Puerto Rico
The main problem with 3x wouldst be is that the angle is too extreme and the spokes is over the flange.....

_________________
www.royalbicycles.com


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 3:34 pm 
Offline
User avatar

Joined: Mon Feb 19, 2007 3:44 am
Posts: 1749
Location: Canada
I used the same parts on one of my builds, but I went 24/28h, radial front, radial rear NDS, and 2X DS (as suggested by troy Watson for NDS rear). I used Spocalc, but can't find the actual lenghts now...
Came just right.

Louis :)


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 5:14 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1427
Location: Glermsford, Suffolk U.K
You can go 3x on a 28H rear wheel but the hub flange has to be small enough. The left side flange is small enough for 3x I think but the right side is not. So it will be 2x for these hubs I think.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
PostPosted: Mon Jul 09, 2012 6:04 pm 
Offline
Shop Owner
User avatar

Joined: Tue Mar 10, 2009 5:27 am
Posts: 1244
Location: McCall, ID
3x on the rear shouldn't cause issues with crossing over the flange on this hub. As mentioned, if a hub had a massive flange, then 2x may be better even in a 28. With this hubset though, 28 hole 3x should be the ticket.

_________________
http://www.zencyclery.com


Top
 Profile  
 
PostPosted: Sat Aug 04, 2012 9:53 am 
Offline

Joined: Fri Apr 20, 2012 9:04 pm
Posts: 237
Considering the same components but quick query on build. I weigh 76kg. Running a340's should I stick with 24/28 or can I drop to a 20 on the front (from reviews I think 24 on the rear will be too low for this rim for my weight). Also any views on spoke lace patterns, am I better with radial on the front?

Finally, if I go for a budget build, would I see much reduction in performance/durability etc using bhs super lights?


Top
 Profile  
 
PostPosted: Sat Aug 04, 2012 6:01 pm 
Offline
User avatar

Joined: Sun Jun 17, 2012 3:45 am
Posts: 100
Radial on the front is going to be much easier to lace up.
I laced up a radial front wheel of mine in about ten minutes.

_________________
My drawings:
http://www.facebook.com/andrewlivingstonart
My bike:
http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=107451


Top
 Profile  
 
PostPosted: Sat Aug 04, 2012 10:29 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1427
Location: Glermsford, Suffolk U.K
Zen maybe right. What is the flange diameter limit them for 3x on 28H hubs?

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
PostPosted: Sun Aug 05, 2012 1:55 am 
Offline
in the industry
User avatar

Joined: Sun Jul 29, 2012 2:59 pm
Posts: 634
Location: Ruidoso, NM
Beancouter wrote:
Running a340's should I stick with 24/28 or can I drop to a 20 on the front (from reviews I think 24 on the rear will be too low for this rim for my weight).


I weigh a little more than you and have had no problem with the old 350g rim with 24 spokes in an Alchemy Orc hub, ~10k miles. The front is an 18h. The rims weigh ~390g now. 28r, 20f should be fine... but everybody is different.

The only issue with 3x lacing and 28h is if the flange is very large you will get an acute angle where the spoke enters the rim.

_________________
formerly rruff...


Top
 Profile  
 
PostPosted: Tue Sep 04, 2012 12:22 pm 
Offline

Joined: Sat Dec 31, 2011 1:17 pm
Posts: 129
Location: Perth, W.A
Hey,

I am looking at getting the same hubs for a new wheel build but i read that tune hubs cant be laced radial as it voids the warranty. Can anyone confirm or deny this?


Top
 Profile  
 
Posted: Tue Sep 04, 2012 12:22 pm 
  • tune MAG 170
  • 307.00 €   from 281.00 € (including 19% VAT)
  • in stock


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ] 


Who is online

Users browsing this forum: Google Adsense [Bot], nathanong87 and 55 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:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Alpha 340 wind sensitive?

in Road

fitty4

8

794

Fri Mar 14, 2014 10:09 pm

fitty4 View the latest post

There are no new unread posts for this topic. Tune kong freehub body for tune mag170???

in Road

Pintxo

6

555

Fri Mar 07, 2014 12:15 pm

Pintxo View the latest post

There are no new unread posts for this topic. AX-Lightness Alpha weight limits ??

in Road

roadiesean

3

717

Sun Mar 09, 2014 8:59 pm

xsport View the latest post

There are no new unread posts for this topic. New tune schwarzbrenner wheels

in Road

NiFTY

4

933

Wed Jul 30, 2014 9:49 pm

CippoForLife View the latest post

There are no new unread posts for this topic. Tune Bottle BPA Free?

in Road

drainyoo

2

451

Sun Feb 23, 2014 5:53 am

drainyoo View the latest post


It is currently Thu Oct 30, 2014 2:53 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB