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  [ 4857 posts ] 
Go to page Previous  1 ... 222, 223, 224, 225, 226, 227, 228 ... 324  Next
Author Message
PostPosted: Thu Oct 18, 2012 1:46 am 
Offline
User avatar

Joined: Thu Mar 18, 2004 7:39 pm
Posts: 140
visionz001 wrote:
Well that cuts it down for me quite well then. Sounds like the 270 or the a23 rim with dati hubs instead of the circus monkey.

The post that was referenced speaks of dati hubs being of poor quality; so why would you pick the dati hubs over the circus monkey ones based on that topic?

_________________
Storck Fenomalist 6.8kg


Top
 Profile  
 
Posted: Thu Oct 18, 2012 1:46 am 


Top
  
 
PostPosted: Thu Oct 18, 2012 6:34 am 
Offline

Joined: Wed Oct 17, 2012 1:46 am
Posts: 6
Oh? Maybe I misread I thought it was referring to circus monkey.


Top
 Profile  
 
PostPosted: Thu Oct 18, 2012 8:28 am 
Offline

Joined: Wed Oct 17, 2012 1:46 am
Posts: 6
has anybody worked with the xr-270? I'm seeing two ERD's from numerous places. I'm seeing 587mm and 585mm anybody know which one to go with? and as for the hubs these are the dimensions I'm seeing. Image

If I'm putting in the calculations correct the spoke length should be 278.2(587 ERD) or 277.2 (585 ERD) for radial lacing the front or 286.5(587 ERD) or 285.5(585 ERD) for 2x lacing.

Would it be better to round up for spoke lengths or round down?


Top
 Profile  
 
PostPosted: Thu Oct 18, 2012 8:57 am 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1414
Location: Glermsford, Suffolk U.K
When you get the rims measure yopurself and when you get the hubs measure yourself. It is the only way to be sure.

The ERD is 587mm bty but really measure yourself as it is an effective rim diamter and depending on how you measure 585mm could be right also. There is always an acceptable range.

277mm or 278mm should both work if for radial spoking based on those measurements. The 277 will mean that you will come up to tension alot quicker. and you might have part of thread showing on one or so spokes. IO would plump for 278mm.

But really measure yourself. doing the ERD your self also helps decide if the rim you have is round to start with.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
PostPosted: Thu Oct 18, 2012 3:18 pm 
Offline

Joined: Thu Dec 22, 2011 3:59 pm
Posts: 79
for now i have builded 3 set of xr-270, i always take 587 for ERD take on bikehubstore website, everything was always good with spoke length, and i'm already building an other set with xr-270

for the weight, i have build a 24/28 kinlin xr-270, sapim laser front, laser nds, race DS, alu nipples front and NDS, Brass DS. With BHS hub for 282gr for the set and it came out at 1503 gr including rim tape(38gr) so you can get it to around 1475 gr with veloplug. Circus monkey seem comprable in weight with BHS hub.


The build i'm doing now, is 20/24 xr-270, laser front R NDS, alu nipples, Rear DS race and brass nipples, with a set of 260gr hub, with veloplug and i'm just under 1400gr, around 1390gr.

_________________
My 1998 Trek 5220 paint stripped 7.02Kg


Top
 Profile  
 
PostPosted: Thu Oct 18, 2012 5:26 pm 
Offline
Shop Owner
User avatar

Joined: Tue Mar 10, 2009 5:27 am
Posts: 1244
Location: McCall, ID
We use the stated ERD of 587 for all of our Xr270 builds, and that seems to give us just the right length spokes.

_________________
http://www.zencyclery.com


Top
 Profile  
 
PostPosted: Thu Oct 18, 2012 8:48 pm 
Offline

Joined: Wed Oct 17, 2012 1:46 am
Posts: 6
thanks for all the help guys I'll probably begin purchasing components soon :)


Top
 Profile  
 
 Post subject: The wheelbuilding thread
PostPosted: Sat Oct 20, 2012 3:22 am 
Offline
User avatar

Joined: Wed Mar 02, 2011 1:15 am
Posts: 45
Location: Victoria, BC Canada
Zen Cyclery wrote:
Miele wrote:
Questions for you Pro wheel builders - I just had some Kinlin XR-19W rims laced to BHS hubs with 24/28 lasers built by a local shop - as I have yet to enter the wheel building world. I am around 185 lbs and had no problems with old Cane Creek Volos 24/28's, or Campy Zonda's for that matter. Front wheel is great , however when I go to drop the hammer, the rear just dosent transmit the torque to crest that hill or power the flats. They spin fast but I cant muscle my way up a climb like I used to. I guess I should have gone XR-300's but:

I wanted to check spoke tension first - what should the DS and NDS tension be? NDS spokes feel quite low in tension...

Would it make a difference to rebuild with 'Race' spokes instead on both DS and NDS?

Thanks!


I was worried about this problem on these rims. They are only rated to go 105 kgf for max tension, which definitely makes me a bit skeptical. Even if upon the initial build, they were setup to 105 kgf DS, this is still low enough to where I would think the nips would gradually start unwinding.
Go ahead and check the DS tension and make sure it is at 105 or just a tad abobe. For the NDS, you aren't looking for any specific number. As long as your DS is good, and the wheel is in dish, then you should be good to go.
I doubt switching to Race spokes will do much either. If getting the rear back up to proper tension doesn't change the ride quality, you may want to consider rebuilding to the XR270 or what not.


The combination of BHS rear hub with its suboptimal geometry and low max rim tension is not going to yield a durable wheel with lower spoke count. The extra low NDS tension will cause problems on that side, especially for 180+ lb rider. Contrast that to the use of Kinlins XR-270 or 300 with good high tension on DS, and the BHS hubs will do well.

_________________
http://www.zedwheels.com - wheels made just for you


Top
 Profile  
 
PostPosted: Sat Oct 20, 2012 8:53 pm 
Offline

Joined: Fri Apr 08, 2011 7:00 pm
Posts: 54
Thought I'd pop in for a reality check. I'm wondering about spokes. Thinking about getting some Nemesis 32s with CK R45s built (with Veloflex Roubaix). How does Laser or Revolution with Race or Competition on the DS sound? I'm 88 kg and am not after a 'bombproof' set. Just something that will ride nice and stay true (and be reasonably non-heavy). I'm not hard on my equipment and the roads around these parts aren't too bad.


Top
 Profile  
 
PostPosted: Sat Oct 20, 2012 10:16 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1414
Location: Glermsford, Suffolk U.K
Sounds fine to me. I have built several wheelsets with that sort of spoking for 90-95 kg riders although on OP's or RR465's and there have been no issues with the wheels.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
 Post subject: The wheelbuilding thread
PostPosted: Sun Oct 21, 2012 7:54 am 
Offline
User avatar

Joined: Wed Mar 02, 2011 1:15 am
Posts: 45
Location: Victoria, BC Canada
TuplaO, sounds great. My typical build from 24h to 32h is Laser NDS and either Race or WS DB-14 DS. Only for heavier guys, softer rims, or tougher conditions do I veer off this for road or cross. That's notwithstanding using CX-Ray all round if budget allows.

_________________
http://www.zedwheels.com - wheels made just for you


Top
 Profile  
 
PostPosted: Sun Oct 21, 2012 9:16 am 
Offline

Joined: Fri Apr 08, 2011 7:00 pm
Posts: 54
^&^^Thank you, gentlemen. To be honest, I thought as much. It's just that so many around the internets are 'going foolproof' that I started to doubt myself...


Top
 Profile  
 
PostPosted: Tue Oct 23, 2012 10:25 am 
Offline

Joined: Thu Mar 03, 2011 7:07 am
Posts: 91
would just like some opinion's on my next wheel build.

i am planning on using tune hubs mig70/mag170, BHS472w rims, cx ray spokes.

they will be used fairly often, but i want something thats race worthy for when i don't feel like running my tub's.

im 80kg (google says 175lb). not hard on equipment but a fairly aggressive racer.

i was thinking 20H radial front, and 24H radial DS (heads in?) and 2x NDS.

is the tune hub suitable for that patern? i am leaning towards the lower spoke count for the weight and also aero advantage.


Top
 Profile  
 
PostPosted: Tue Oct 23, 2012 1:54 pm 
Offline
in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 1414
Location: Glermsford, Suffolk U.K
I would lace the rear 2x both sides. Why do you want to do DS head in lacing anyway? Radial DS spokes are used to redue the ammount of peak loading the rim experiences. This allows a lighter rim to be used. The rims you have picked is not that light anyway so I am not to sure what you are going to gain. It makes some sort of sense for some wheel manufacturers to do as they can design the hubs, spokes and rim to work together and only makes some sort of sence to shave every last gram of the rim but more weight will be needed at the hub so it's a trade off. You would also need a large NDS flange to help with torque transfer. The tune hub NDS flange is not very large at all. It small to keep the weight down. Heads in DS radial spokes are going to put a fair bit of load on the hub flange I really don't know if the tune hubs are up to it but I would not take the risk with such an expensive hub.

In fact when doing a handbuilt wheel you should be doing the same i.e. seleting compents and lacing pattern that ompliemnt eah other. I cannot see any signifiant advantages for the pattern you propose only downside.

So in my opinion don't risk it but maybe someone will come along who has done it and found no problems after a few thousand miles.

_________________
www.thecycleclinic.co.uk


Top
 Profile  
 
PostPosted: Tue Oct 23, 2012 2:28 pm 
Offline

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 1736
Location: Santa Cruz, California, USA
If you want heads in on the DS, do 1x. But you only need that if the hub has a narrow DS flange spacing and if you need a laterally stiff wheel due to your riding style. If the flange spacing is greater then you run the danger of the spokes interfering with the derailleur cage (bladed spokes may address that somewhat depending on where they go from round to bladed section and the flange diameter).


Top
 Profile  
 
Posted: Tue Oct 23, 2012 2:28 pm 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4857 posts ] 
Go to page Previous  1 ... 222, 223, 224, 225, 226, 227, 228 ... 324  Next


Who is online

Users browsing this forum: LeShark and 7 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. Wheelbuilding - Every 5th spoke too short...

in Road

shinkansen

14

2068

Tue Apr 01, 2014 5:00 am

ProEvoSLTeamHighMod View the latest post

There are no new unread posts for this topic. The 'hub help' thread

[ Go to page: 1, 2 ]

in Everything wheels

kavitator

20

1091

Wed Mar 05, 2014 7:19 pm

sanrensho View the latest post

There are no new unread posts for this topic. Not another what wheel thread...

in Everything wheels

peted76

5

355

Mon Sep 29, 2014 1:42 pm

peted76 View the latest post

There are no new unread posts for this topic. Thread title V2.0

in Test

pam

0

202

Sat Mar 08, 2014 2:38 am

pam View the latest post

There are no new unread posts for this topic. Another Bike fit thread, how does my fit look? Help.

[ Go to page: 1, 2 ]

in Road

plag

26

1246

Tue Oct 21, 2014 7:09 pm

TwiggyTN View the latest post


It is currently Wed Oct 22, 2014 2:56 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