Could someone check my spoke calculations

Rob H

Retro Guru
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?
 
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.
 
FluffyChicken":3eycaiq6 said:
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":3eycaiq6 said:
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":3eycaiq6 said:
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":3eycaiq6 said:
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.
 

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