Spokes thread size

[franknjan]

Hi. I'm looking to replacing my 7inch full width front hub with an 8 inch hub. The rim and spokes fitted are in good condition.
Just thinking,  it's just a matter of shortening the length of the spoke and rethreading.
Does anyone know the thread size?
Thanks.

[JulianS]

Spokes are best with the stronger rolled threads rather than die cut.

The first photo shows a thread rolling tool on the left and a thread cutting tool/die holder on the right.

The second photo shows the dies for the cutting tool, I think the number on the die indicates the wire gauge of the spoke, It is very easy to cut the thread out of true and ruin/weaken the spoke without using the holder.

These tools were rescued from a retiring dealer some years back and I dont know anything more about them or about the threads used on current production spokes.

Probably best to source a new set of spokes for the 8 inch.

[V500]

Unless the old rim has had the nipple holes punched very generously, you'll need a new rim too.
It would be cheaper and easier to build the wheel you want (ie new rim and spokes) and then sell the old wheel.

[Daz]

Spokes are best with the stronger rolled threads rather than die cut.

The first photo shows a thread rolling tool on the left and a thread cutting tool/die holder on the right.

The second photo shows the dies for the cutting tool, I think the number on the die indicates the wire gauge of the spoke, It is very easy to cut the thread out of true and ruin/weaken the spoke without using the holder.

These tools were rescued from a retiring dealer some years back and I dont know anything more about them or about the threads used on current production spokes.

Probably best to source a new set of spokes for the 8 inch.

Would you consider selling these tools?
  Daz

[JulianS]

Sorry they have already found a new owner.