Respacing 130mm to 126mm

[si_c]

126mm freehubs are long gone. Even my 1986 Raleigh had 130mm spacing and that's with a 7 speed freehub.

Definitely like hens teeth for originals. With a freewheel you can always adust the OLN by swapping spacers/axles out if you have the parts. I bought a new wheelset from a LBS a couple of years back and he removed a couple of washers to get it right - although the axle itself needed a couple of MM removing from each end to ensure the QR would work.

No reason not to put old hubs onto new rims though and keep it working that way.

 

[Eziemnaik]

Okay
Now thanks in part to Covid I have too much time to think and I would like to ask a different question or two.
If I respace a 126mm hub to fit into 130mm frame in order to reduce the dishing by adding a longer axle and a spacer on NDS would I also have to recalculate spoke length???

 

[Ajax Bay]

The hub flanges cannot move (except round and round, of course), and that's what the spokes are attached to. Cunning axle wheezes are irrelevant. How about a picture of the bike and the hub?

 

[Eziemnaik]

Obviously hub flanges will move relative to the rim if I put extra 4mm on the NDS. I think left flange will move to 34.6 and right to 19.9, reducing the offset to 7.4.

 

[Ajax Bay]

would I also have to recalculate spoke length?

https://www.wheelpro.co.uk/spokecalc/
Makes a difference of 0.3mm left and 0.1mm right (with an ERD of 608mm, 32, 3x).