Retrobike Forum Index

It is currently Mon Dec 05, 2016 7:47 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Mon Apr 29, 2013 10:21 pm 
Retro Guru

Joined: Tue Dec 04, 2012 6:15 pm
Posts: 523
I'm looking to buy a Shimano LX Dynamo hub part no. DH-T675 to build up on a spare Mavic 721 disc I've got to make a robust touring wheel.

The problem is that Shimano don't want to publish the dimentions of the flanges anywhere online the, best I can find is in one of there technical manuals which reads as follows:

O.L.D - 100mm
Flange distance - 52.1mm
Offset - 4mm
Hole P.C.D - 70mm

But the DT Swiss Calculator requires flange distance left and right, assuming the flanges are about 2mm think I make it:

Flange distance left 20mm
Flange distance right 24mm

Can anyone confirm or offer alternative values?

Finally when I plug all this into the DT Swiss calculator I make it 251mm spokes on both sides, again can someone confirm this?


Top
 Profile  
 
PostPosted: Tue Apr 30, 2013 8:02 am 
retrobike rider
retrobike rider
User avatar

Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16747
Location: Yorkshire, England
I cannot see it in the usually useful hub spec tech doc, is it based on a nexus/nexave hub?

Could try here to see if they have any info. The flange numbers are usualy to centre of flange, so ignore thickness. Nottgat that'll change the numbers
http://hubstripping.wordpress.com

Alternative is to get someone to measure it, or buy then measure.


Top
 Profile  
 
PostPosted: Tue Apr 30, 2013 8:17 am 
retrobike rider
retrobike rider
User avatar

Joined: Fri Aug 08, 2008 2:36 pm
Posts: 16747
Location: Yorkshire, England
Assuming 36 hole 3x using http://lenni.info/edd/ and an alfine s501 I get similar, but best not to guess


Top
 Profile  
 
PostPosted: Tue Apr 30, 2013 12:59 pm 
Retro Guru

Joined: Tue Dec 04, 2012 6:15 pm
Posts: 523
FluffyChicken wrote:
I cannot see it in the usually useful hub spec tech doc, is it based on a nexus/nexave hub?


There's a good chance it is but I can't say for certain, it definately looks the simular:

http://www.rosebikes.co.uk/article/shim ... -t675-disc

FluffyChicken wrote:
The flange numbers are usualy to centre of flange, so ignore thickness.


OK, I didn't realise that the numbers were to the centre of the flange, good to know as that's one less thing to guess.

FluffyChicken wrote:
or buy then measure.


That's my fall back but I'd rather order both the hub and spokes in one go to keep the cost down.

FluffyChicken wrote:
Assuming 36 hole 3x using http://lenni.info/edd/ and an alfine s501 I get similar, but best not to guess


I forgot to mention that it is indeed 36 hole, makes a bit of a difference. Good to know that you're getting simular.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 3 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:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group