Originally Posted by
mrrabbit
Assuming we are aiming for the screwdriver flat of the nipples on the rear wheel:
36H
3X
R = 536
r-left = 44.0
r-right = 45.0
c-left = 35.30
c-right = 22.10
SL-Left = 259.11
SL-Right = 257.44
As AEO indicated you end up with 259.00 and 257.00
=8-)
Does anyone know if the Shimano published specs are to the center of the flange? Based on my actual meaurements, it looks to me like the c-left and c-right dimensions are to the outside edge of the flange.
FB: This is a box rim with probably 4mm from the top of the eyelet to the second wall. I do have some room if the spokes are too long.
In any event, it looks like the Mavic calculator gives about 1mm or so longer than the UBI or Musson calculator regardless of the numbers.
I found a place near me (Excel Sports) that sells individual spokes, so my need to stay with one length is lessened. I'll probably go with 260mm and 258mm (Excel only offers even lengths at this size).
Paul