wheel build help - ...
 

  You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more

[Closed] wheel build help - flange diameter of Hope XC hubs

7 Posts
4 Users
0 Reactions
53 Views
Posts: 5746
Free Member
Topic starter
 

Just found my rear wheel's rim is splitting so new rim and new set of spokes needed for a rebuild. Trying to work out spoke lengths. for the DT calulator here http://www.dtswiss.com/SpokesCalc/Calculator.aspx
I need to know
PCD and flange distances, and also diameter of spoke hole (why?)

hub is a Hope xc like this
http://www.hopetech.com/page.aspx?itemID=SPG165

rim I plan on is a Mavic XM319 like this http://www.chainreactioncycles.com/Models.aspx?ModelID=71060

spokes will be sapim race or DT comp in silver, with brass nipples, 36 of them laced 3 cross.

Okay so does anybody know the required info for the hub? Or where to find it? or how to measure it accurately enough on a hub that is still laced into a wheel?

Cheers

now, gratuitous photo of the reason for the rebuild (one of several cracks)
[img] [/img]

I know the cause - spoke tension went out of whack and way too high after some desperate re-truing following a prang a couple of years ago....I'm amazed it has lasted for another 10k miles!


 
Posted : 12/02/2012 5:33 pm
Posts: 99
Free Member
Posts: 5746
Free Member
Topic starter
 

Great! thanks. I'm coming out at 258mm both sides. Although neither the dt nor the mavic calculator has the xm319 listed 😕 so I've used the xm 719...hope that is the same/similar ERD!


 
Posted : 12/02/2012 7:51 pm
Posts: 41395
Free Member
 

You are asking the dimensions of a hub that you have in your possession?

Do you have a rule?


 
Posted : 12/02/2012 8:17 pm
Posts: 4
Free Member
 

http://lenni.info/edd/

better spoke calculator as it has all the hubs and rims in its data base


 
Posted : 12/02/2012 8:19 pm
Posts: 5746
Free Member
Topic starter
 

yes al, and yes, but it isn't all that easy to measure the pcd accurately...put a rule acros and the axle is in the way. similarly awkward with flange spacing, especially as the hub is still laced into a wheel. Conan's link was very helpfully just what I wanted.

al, you HAVE turned into elfin, and I claim my five pounds


 
Posted : 12/02/2012 8:41 pm
Posts: 5746
Free Member
Topic starter
 

Ah now thanks 1111, that is really rather easy. It still doesn't have a xm319....I'm starting to wonder what that rim is that crc have....some OEM stuff perhaps?


 
Posted : 12/02/2012 8:45 pm
Posts: 41395
Free Member
 

It's easy to measure both on any wheel, to the necessary level of accuracy.


 
Posted : 12/02/2012 8:58 pm

6 DAYS LEFT
We are currently at 95% of our target!