Wheel build issues.

bluesmurf

bluesmurf

Likes Bikes
After having my rear wheel seize up and destroy my hub I need to order a new hub and spokes to rebuild the wheel. I am going to get this hub

http://www.chainreactioncycles.com/Models.aspx?ModelID=3987

and lace it to my existing rim which is a mavic XM317 disc.


This is the calculator I am using

http://lenni.info/edd/

I have tried to work out spoke lengths using a this calculator but each one is giving me a different answer. The other problem I am having is the different model numbers for the same hub ie
Shimano XT Disc FH-M756, rear
Right flange ø: 45
Left flange ø: 45
Centre to right flange: 24.7
Centre to left flange: 37
Spoke hole ø: 2.6


or
Shimano Deore XT FH-M756L, rear
Right flange ø: 61
Left flange ø: 61
Centre to right flange: 18.5
Centre to left flange: 32
Spoke hole ø: 2.6


My mate who is going to build the wheel up for me came up with a measurement on the existing hub of 620mm and 622mm spokes but the calculator gives a different measurement to that. Again two different measurements for the same hub. (fh m525)

I am confused and in need of some help.:confused::confused::confused:
 
shakes

shakes

Likes Dirt
Using the info in your post you are ordering the M756 hub, not the M756L I don't know the specific difference between them
I would wait till the hub arrives and physically measure it to confirm your workings out are correct, nearly every shop will have spokes in store the right length.

fwiw I've used the calculator excel spreadsheet on sheldon browns several times with success.

Hope thats some help
 
Last edited:
bluesmurf

bluesmurf

Likes Bikes
Cheers shakes, after some more looking and talking to my mate we have worked out the sizes we need. I am going to get the spokes locally though as I would have to order enough to do two wheels if I get them from CRC.
 
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